The Bears fought their rival Minnesota Vikings in Week 12. The game was an injury-laden game for both teams, with a total of seven players lost for both teams, with Chicago losing five (Lance Louis , Chris Spencer , Matt Forte , Devin Hester , and Charles Tillman ), while Minnesota lost Kyle Rudolph and Harrison Smith to concussions. The Bears first offensive play resulted in Matt Forte fumbling for the first time all season when he ran into Evan Rodriguez, and had the ball recovered by Vikings linebacker Chad Greenway. The Vikings then scored a field goal on Blair Walsh's 40-yard field goal. The Bears then struck back when Nick Roach stripped the ball from Adrian Peterson, which was recovered by Tillman. Jay Cutler, returning from the concussion he sustained two weeks prior, moved the ball downfield to the Vikings one-yard line, where Michael Bush ran in to give the Bears the lead. The Bears closed out the quarter with a 10-3 lead after Gould kicked a 47-yard field goal. In the second quarter, the Bears scored again on Bush's second one-yard touchdown run. On the ensuing extra point, holder Adam Podlesh faked the kick and ran in to give the Bears two points. Chris Conte would eventually intercept Christian Ponder at the 48-yard line and return the interception 35 yards to the Vikings 13-yard line. Cutler then hit Matt Spaeth in the left corner of the end zone to increase the score to 25-3. Early in the second half, Minnesota would record their first touchdown of the game on Ponder's two-yard pass to Rudolph, and Gould would then make a 46-yard field goal late in the third quarter to end the game with a Chicago victory. In his return, Cutler completed 15 of 17 passes for 117 yards with one touchdown and a 115.0 passer rating in the first half, and would end the game with stats of 23 of 31 passes completed for 188 yards with one touchdown, one interception and an 86.5 passer rating. Receiver Brandon Marshall recorded 12 catches for 92 yards, and passed the 1,000 yards receiving mark for the sixth time in his career with 1,017 yards, making him the first Bears receiver to record 1,000 yards in a season since Marty Booker in 2002. With the win, Chicago improved to 8-3, snapping their two-game losing streak.
Question: How many of Jay Cutler's passes were incomplete?
Answer: 2