St. Mary’s had a big concern coming into the NCAA Tournament’s First Four. Its career scoring leader suddenly couldn’t hit a shot.

Matthew Dellavedova hit his first two from behind the arc Tuesday night, and the tournament got its first big night by a dominant guard. The Australian star emerged from his slump and scored 22 points in a 67-54 victory over Middle Tennessee.

The 11th-seeded Gaels (28-6) will look for more of the same from Dellavedova today after a quick trip to Auburn Hills, Mich., to play sixth-seeded Memphis.

“Memphis — pretty much the same game plan,” coach Randy Bennett said.

The Gaels will once again be without starting guard Jorden Paige, who did not play Tuesday, due to a right knee injury.