Nickeil Alexander-Walker is blocked by Iowa's Tyler Cook on a layup attempt. (Mark Umansky/TheKeyPlay.com)

Nickeil Alexander-Walker gets ready to attempt a three point shot as the second half starts to come to a close. (Mark Umansky/TheKeyPlay.com)

Head coach Buzz Williams reacts after a foul call goes against his team. (Mark Umansky/TheKeyPlay.com)