Texas Southern beats Mount St. Mary's 60-52 in NCAA opener

Texas Southern forward John Walker III (24) passes the ball off to a teammate after being stopped en route to the basket by Mount St. Mary's forward Nana Opoku (22) during the second half of a First Four game in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Players warm up on the court before the start of a First Four game between Texas Southern and Mount St. Mary's in the NCAA men's college basketball tournament, Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Mount St. Mary's guard Damian Chong Qui (15) attempts to save the ball from going out-of-bounds during the first half of a First Four game against Texas Southern in the NCAA men's college basketball tournament, Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern forward John Walker III (24) is fouled as he takes a shot during the first half of a First Four game against Mount St. Mary's in the NCAA men's college basketball tournament, Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern forward Joirdon Karl Nicholas (5), left, and Mount St. Mary's forward Frantisek Barton (24) battle for a rebound during the first half of a First Four game in the NCAA men's college basketball tournament, Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern guard Michael Weathers (20) drives the ball into the defense of Mount St. Mary's guard Damian Chong Qui (15) during the second half of a First Four game in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern players on the bench react as time expires in the team's First Four game against Mount St. Mary's in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern forward John Walker III (24) grabs a rebound next to Mount St. Mary's forward Malik Jefferson (42) during the second half of a First Four game in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

A worker cleans the backboard and rim on the court during halftime of a First Four game between Texas Southern and Mount St. Mary's in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Texas Southern players celebrate after defeating Mount St. Mary's in a First Four game in the NCAA men's college basketball tournament, Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)

Mount St. Mary's forward Nana Opoku (22) shoots while being defended by Texas Southern forward John Walker III, left, and guard Michael Weathers (20) during the second half of a First Four game in the NCAA men's college basketball tournament Thursday, March 18, 2021, in Bloomington, Ind. (AP Photo/Doug McSchooler)