Houston head coach Kelvin Sampson reacts to a foul call during the first half of a second round men's college basketball game against Ohio State in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Charlie Riedel)

Houston's Galen Robinson Jr. (25) beats Ohio State's Keyshawn Woods (32) to a loose ball during the first half of a second round men's college basketball game in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Charlie Riedel)

Houston's Galen Robinson Jr., right, heads to the basket past Ohio State's Keyshawn Woods during the first half of a second round men's college basketball game in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Jeff Roberson)

Houston's Armoni Brooks (3) puts up a shot during the first half of a second round men's college basketball game against Ohio State in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Charlie Riedel)

Ohio State's C.J. Jackson (3) reaches for a loose ball as it goes out of bounds as Houston's Galen Robinson Jr. watches during the first half of a second round men's college basketball game in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Jeff Roberson)

Ohio State's C.J. Jackson, left, and Houston's Brison Gresham chase a loose ball during the first half of a second round men's college basketball game in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Charlie Riedel)

Ohio State's Kaleb Wesson (34) and Andre Wesson (24) battle with Houston's Breaon Brady, center, for a loose ball during the first half of a second round men's college basketball game in the NCAA Tournament Sunday, March 24, 2019, in Tulsa, Okla. (AP Photo/Charlie Riedel)