The Gophers men’s basketball staff said senior DeAndre Mathieu has focused on three major aspects over the summer:

• Packing on muscle. Coach Richard Pitino said Tuesday that Mathieu has added about 13 pounds this summer, which makes for 22 total pounds added since arriving in Minnesota last August, meaning he’s gone from 156 to 178 in two summers. The goal, strength and conditioning coach Shaun Brown said, has always been for Mathieu to wind up at 180.

• Shooting. He managed an impressive 48.9 percent from three-point range and 51.1 percent from the field last season, but often seemed hesitant to let it fly if he couldn’t barrel to the rim — clearly his preferred method of scoring. Mathieu has been staying after workouts to get up dozens of extra three-pointers, off the dribble and off the catch.

• Avoiding frustration. assistant coach Dan McHale sat Mathieu down in his office for a private film session. The guard watched clips of himself getting upset, showing his emotions, looking dejected or angry on the court. “Coach, I didn’t even realize,” he told McHale.

Gold in the Barn: startribune.com/gophers