Makes you wonder how much the Chicago game took out of Villa. Maybe it's just coincidence, everyone has a off game, but I am pretty sure he also missed a day of practice this week, as he didn't show up on any of the photos or Inside Training video that was posted.
Soccer in the City guys said that Maxi was basically still spent from the Chicago game at the start of this one. Don't underestimate the effect that basically running your butt off to cover to be a man down in that absolutely insane heat. What was it, 90+ degrees with high humidity? No athletes should be putting in 90 minutes of hard running under that temperature. I wouldn't blame any player to take a few days to recover from that.