ManUtd.com's Gemma Thompson and Nick Coppack are travelling with the squad throughout their tour of America and you can interact with them on our message board.
Saturday 23 July (all times are local, Chicago is 6 hours behind BST)
18:08 Me and Nick are off to the mixed zone to get some reaction from the players and we'll be also be at Sir Alex's post-match press conference. We've then got to dash off to catch the team plane to New Jersey, our next stop on tour. We'll be in touch when we get there. (GT)
18:00 FT: Chicago Fire 1 United 3. Reds come from behind to seal victory in the searing heat thanks to great goals from Rooney, Rafael and Nani. Make sure you have a read of Nick's match report. (GT)
17:51 GOAL! Chicago Fire 1 United 3 (Nani, 82). The Portuguese winger collects the ball from Macheda before a lucky ricochet puts him through on goal and he dinks the ball over Conway. Sublime. (GT)
17:40 GOAL! Chicago Fire 1 United 2 (Rafael, 76). Stunning goal from Rafa who exchanges passes with Nani on the right before bursting into the area and finishing under the keeper's legs from the tighest of angles. (GT)
17:38 More subs for the Reds: Rafael on for Smalling and Vidic for Jones. We have 15 minutes left. (GT)
17:35 GOAL! Chicago Fire 1 United 1 (Rooney, 66). Wazza just can't stop scoring. Ferdinand lofts a lovely pass over the top into Rooney's path and the Reds striker lobs the ball over Conway. Great