Greensboro, N.C. ? There were ice bags scattered all over the North Carolina locker room and players had a tough time getting their uniforms off. But boy, the pain felt so good Tuesday for the 10th-ranked Tar Heels after an 88-81 victory over No. 11 Illinois in the ACC-Big Ten Challenge.

North Carolina remained undefeated with the victory, outlasting one of the nation’s deepest teams behind Sean May’s 23 points and 14 rebounds — both career highs.

“Right now is one of those high moments in coaching that you really enjoy,” UNC coach Roy Williams said. “If we play like this we’ve got a chance.”

No. 2 Florida 102, Florida A&M 78

Gainesville, Fla. — Matt Walsh celebrated his 21st birthday with 15 points, lifting No. 2 Florida. Walsh also had four rebounds and five assists.

No. 12 Saint Joseph’s 84, San Francisco 52

Philadelphia — Jameer Nelson scored 18 points and Dwayne Jones added a career-high 13 points in No. 12 Saint Joseph’s victory.

Maryland 73, No. 15 Wisconsin 67, OT

College Park, Md. — Jamar Smith scored a career-high 25 points, including the go-ahead basket with 56 seconds left, for Maryland.

No. 18 Wake Forest 100, Indiana 67

Winston-Salem, N.C. — Eric Williams scored 25 points and freshman Chris Paul had 20 to lead No. 18 Wake Forest.

No. 19 Cincinnati 68, Valparaiso 49

Valparaiso, Ind. — Jason Maxiell had 20 points and 11 rebounds for Cincinnati.