That's it. The match concludes - Chicago Fire FC triumphs with 4, Philadelphia Union trails behind with 3.

The second half concludes - Chicago Fire FC triumphs with 4 goals, while Philadelphia Union trails with 3.

Opportunity squandered. Jakob Glesnes of Philadelphia Union narrowly misses the goal with a header from the middle of the box. The assist came from Kai Wagner, who delivered a cross following a corner kick.

Corner kick awarded to Philadelphia Union, forced by Chris Brady.

Missed chance. Jack McGlynn - Philadelphia Union - shot with left foot from outside the box is very close to the goal from a free kick.

Jesús Bueno of Philadelphia Union has successfully earned an offensive free kick.

Wyatt Omsberg of Chicago Fire FC has committed a foul.

Rafael Czichos commits a foul - representing Chicago Fire FC.

Dániel Gazdag of Philadelphia Union has successfully secured a defensive free kick.

New attacking attempt. Georgios Koutsias - Chicago Fire FC - shot with right foot from the centre of the box is saved in the right corner. Assist - Maren Haile-Selassie.

Player change - Chicago Fire FC. Georgios Koutsias is coming on to replace Hugo Cuypers.

Player change - Chicago Fire FC. Brian Gutierrez is being replaced by Mauricio Pineda.

Score! Chicago Fire FC 4, Philadelphia Union 3. Hugo Cuypers of Chicago Fire FC strikes with his right foot from a short distance, sending the ball into the middle of the net. The assist was provided by Maren Haile-Selassie.

Offside - Philadelphia Union. Quinn Sullivan is in offside.

Goal! Chicago Fire FC 3, Philadelphia Union 3. Gastón Giménez - Chicago Fire FC - shot with left foot from the centre of the box to the right corner. Assist - Rafael Czichos after corner.

Missed chance. Rafael Czichos - Chicago Fire FC - shot with the head from the centre of the box is high and wide to the right. Assist - Fabian Herbers after corner.

Corner kick awarded to Chicago Fire FC, courtesy of a deflection off Oliver Semmle.

Shot blocked. Hugo Cuypers - Chicago Fire FC - shot with right foot from the right side of the box is blocked. Assist - Rafael Czichos.

Offside call - Chicago Fire FC. Maren Haile-Selassie has been flagged for offside.

Offside call - Chicago Fire FC. Hugo Cuypers has been flagged offside.

Score! Chicago Fire FC 2, Philadelphia Union 3. Hugo Cuypers of Chicago Fire FC finds the back of the net with a header from a short distance into the left corner. The assist came from Chris Mueller, who set it up with a headed pass following a corner kick.

Corner kick awarded to Chicago Fire FC, forced by Jakob Glesnes.

Opportunity squandered. Gastón Giménez of Chicago Fire FC takes a left-footed shot from over 35 yards out, but it sails over the bar.

Leon Flach of Philadelphia Union has successfully earned a defensive free kick.

Gastón Giménez of Chicago Fire FC commits a foul.

Dániel Gazdag of Philadelphia Union is penalized for a handball.

Player change - Chicago Fire FC. Tom Barlow is coming in to replace Kellyn Acosta.

Opportunity squandered. Brian Gutiérrez of Chicago Fire FC takes a shot with his right foot from beyond the box, but it sails too high. The assist was provided by Kellyn Acosta.

Player change - Philadelphia Union. Jeremy Rafanello is coming on to replace Chris Donovan.

Opportunity squandered. Chris Mueller of Chicago Fire FC takes a right-footed shot from the right side of the penalty area following a corner, but it sails over the crossbar.

Corner kick awarded to Chicago Fire FC, courtesy of a deflection off Oliver Semmle.

Another offensive move. Gastón Giménez of Chicago Fire FC takes a shot with his left foot from beyond the box, but it's saved in the left corner.

Corner kick awarded to Chicago Fire FC, forced by Nathan Harriel.

Player swap - Chicago Fire FC. Allan Arigoni is replaced by Gastón Giménez.

Jack Elliott of Philadelphia Union has secured a defensive free kick.

Fouled by Chris Mueller - Chicago Fire FC

Fouled by Jack McGlynn - Philadelphia Union

Allan Arigoni - Chicago Fire FC - won a free kick in defence.

Missed chance. Hugo Cuypers - Chicago Fire FC - shot with left foot inside of six yard box - left side missed to the left.

Another offensive push. Maren Haile-Selassie of Chicago Fire FC attempts a shot with his right foot from beyond the box, but it's saved in the right corner. The assist came from Brian Gutierrez.

Quinn Sullivan of Philadelphia Union has committed a foul.

Allan Arigoni of Chicago Fire FC has successfully earned a defensive free kick.

Jack McGlynn from Philadelphia Union has committed a foul.

Arnaud Souquet of Chicago Fire FC successfully earned a defensive free kick.

Kellyn Acosta of Chicago Fire FC commits a foul.

Chris Donovan from Philadelphia Union has successfully secured a free kick on the right flank.

VAR Ruling: Goal Disallowed. The score remains Chicago Fire FC 1, Philadelphia Union 3.

VAR DISALLOWS GOAL: Chris Mueller of Chicago Fire FC finds the back of the net, but the goal is nullified following a VAR check.

Offside - Chicago Fire FC. Maren Haile-Selassie is in offside.

Dániel Gazdag of Philadelphia Union has been handed a yellow card due to a foul.

Kellyn Acosta from Chicago Fire FC has successfully secured a defensive free kick.

Dániel Gazdag of Philadelphia Union has committed a foul.

Another offensive move. Jack Elliott of Philadelphia Union takes a left-footed shot from beyond the box, but it's saved at the upper middle of the goal. The assist was by Jakob Glesnes.

Kellyn Acosta of Chicago Fire FC commits a foul.

Dániel Gazdag of Philadelphia Union has successfully earned a free kick on the offensive end.

Opportunity squandered. Jack McGlynn from Philadelphia Union takes a left-footed shot from outside the penalty area, but it sails high and wide to the left. The assist was provided by Leon Flach.

Goal! Chicago Fire FC 1, Philadelphia Union 3. Jack McGlynn - Philadelphia Union - shot with left foot from outside the box to the right corner. Assist - Dániel Gazdag.

Quinn Sullivan of Philadelphia Union has committed a foul.

Allan Arigoni of Chicago Fire FC has successfully secured a defensive free kick.

Jack McGlynn of Philadelphia Union has successfully secured a defensive free kick.

Allan Arigoni of Chicago Fire FC commits a foul.

Player swap for Chicago Fire FC. Jonathan Dean makes way for Chris Mueller.

The second half kicks off with Chicago Fire FC trailing 1-2 against Philadelphia Union.

The first half has concluded with Philadelphia Union leading 2-1 against Chicago Fire FC.

Score! Chicago Fire FC 1, Philadelphia Union 2. Dániel Gazdag of Philadelphia Union successfully scores from the penalty spot, driving the ball into the right corner with his right foot.

Chris Brady from Chicago Fire FC has been handed a yellow card due to a violation.

Video Assistant Referee Verdict: Philadelphia Union awarded a penalty kick.

Chris Brady of Chicago Fire FC has given away a penalty following a foul committed in the penalty box.

Philadelphia Union is awarded a penalty. A foul on Nathan Harriel in the penalty box is the cause.

Opportunity lost. Jack McGlynn from Philadelphia Union takes a left-footed shot from beyond the box, but it sails high and wide to the left. The assist was provided by Quinn Sullivan.

Another offensive effort. Rafael Czichos of Chicago Fire FC tries a header from the middle of the box, but it's thwarted in the top right corner. The assist came from Wyatt Omsberg, also with a header.

Kai Wagner from Philadelphia Union has committed a foul.

Allan Arigoni of Chicago Fire FC has secured a free kick on the right flank.

Score! Chicago Fire FC and Philadelphia Union are now tied at 1-1. Chris Donovan of Philadelphia Union has successfully shot a right-footed strike from the middle of the box into the right corner. The assist came from Leon Flach.

Opportunity squandered. Leon Flach of Philadelphia Union takes a shot with his left foot from beyond the box but fails to hit the target. The assist was provided by Nathan Harriel.

Jesús Bueno from Philadelphia Union has secured a free kick in the offensive play.

Kellyn Acosta of Chicago Fire FC commits a foul.

Kai Wagner of Philadelphia Union successfully secured a defensive free kick.

Brian Gutiérrez of Chicago Fire FC commits a foul.

Another offensive move. Maren Haile-Selassie from Chicago Fire FC takes a shot with his right foot from the middle of the box, but the goalkeeper makes a save right in the middle of the goal. The assist came from Allan Arigoni.

Opportunity squandered. Brian Gutiérrez of Chicago Fire FC takes a right-footed shot from beyond the penalty area that narrowly misses the target. The assist came from Jonathan Dean.

Jakob Glesnes of Philadelphia Union has been handed a yellow card due to a foul.

Hugo Cuypers from Chicago Fire FC has been awarded a defensive free kick.

Jakob Glesnes of Philadelphia Union has committed a foul.

Score! Chicago Fire FC leads 1-0 against Philadelphia Union. Maren Haile-Selassie of Chicago Fire FC swiftly strikes the ball with his right foot from a short distance into the right corner, following a rapid counterattack.

Hugo Cuypers commits a foul - Chicago Fire FC.

Jesús Bueno of Philadelphia Union successfully secured a defensive free kick.

New attacking attempt. Maren Haile-Selassie - Chicago Fire FC - shot with right foot from the centre of the box is saved by goalkeeper in the centre of the goal. Assist - Brian Gutiérrez.

Opportunity squandered. Quinn Sullivan of Philadelphia Union attempted a right-footed shot from beyond the box, but it veered left, missing the goal. The assist was from Jack McGlynn.

Offside called against Philadelphia Union. Dániel Gazdag is caught offside.

Missed chance. Allan Arigoni - Chicago Fire FC - shot with left foot from outside the box missed.

Hugo Cuypers from Chicago Fire FC has managed to secure a defensive free kick.

Jack Elliott of Philadelphia Union has committed a foul.

Maren Haile-Selassie of Chicago Fire FC is penalized for a handball.

Kellyn Acosta of Chicago Fire FC has successfully secured a defensive free kick.

Jesús Bueno of Philadelphia Union is penalized for a foul.

Rafael Czichos of Chicago Fire FC has successfully secured a defensive free kick.

Chris Donovan of Philadelphia Union has committed a foul.

Jack McGlynn of Philadelphia Union has secured a free kick on the right flank.

Fabian Herbers from Chicago Fire FC commits a foul.

Opportunity squandered. Quinn Sullivan of Philadelphia Union takes a shot with his right foot from the middle of the box, but it sails high and wide to the right.

Attempt thwarted. Philadelphia Union's Quinn Sullivan takes a right-footed shot from the left side of the box but it's stopped. The assist came from Kai Wagner.

Wyatt Omsberg of Chicago Fire FC has been handed a yellow card due to a foul he committed.

Quinn Sullivan from Philadelphia Union has earned an offensive free kick.

Wyatt Omsberg of Chicago Fire FC commits a foul.

Maren Haile-Selassie of Chicago Fire FC has successfully earned a defensive free kick.

Jakob Glesnes of Philadelphia Union commits a foul.

Jack Elliott of Philadelphia Union has earned an attacking free kick.

Maren Haile-Selassie of Chicago Fire FC commits a foul.

Nathan Harriel of Philadelphia Union has been awarded a defensive free kick.

Hugo Cuypers commits a foul - Chicago Fire FC.

The initial half commences..