After routing three straight mid-major opponents, Ohio State moves up a weight class to host Pittsburgh on Friday. The Panthers (6-1) will play in Columbus without one of their key players in guard Damian Dunn, who underwent surgery Monday to repair a right thumb injury, according to the school. Dunn has started every game and is averaging 11.1 points and 2.1 rebounds per game while shooting 49 percent from the field and making 52.6 percent of his 3-pointers. He was injured early in the Greenbrier Tip-Off against No. 15 Wisconsin on Sunday. The loss of his playmaking and veteran leadership may have factored in the Panthers blowing a 14-point lead in 81-75 defeat.