Mark Steven Lyons is an American professional basketball player for Al Ahly of the Egyptian Basketball Premier League and the Basketball Africa League (BAL). He played college basketball for Xavier and Arizona before playing professionally in countries including France, Croatia, Israel, Turkey, China, Russia, Lebanon, Italy and Saudi Arabia.

The Xavier Musketeers men's basketball team represents Xavier University in Cincinnati, Ohio. The school's team currently competes in the Big East Conference, and are coached by Sean Miller. Xavier has appeared in the NCAA tournament 29 times, 16 times in the 18 tournaments between 2001 and 2018. On March 11, 2018, Xavier earned its first ever No. 1 seed in the NCAA Tournament. Xavier is also a two-time winner of the NIT, with their most recent championship coming in 2022.