The Mavericks will retire longtime All-Star guard Derek Harper’s No. 12 jersey on Jan. 7, making him only the third player in franchise history to see his number retired, the team announced Monday. Harper will join Brad Davis (No. 10) and Rolando Blackman (No. 22) as the only Mavericks to have their jerseys retired. "Like every Mavs fan around the world, we are proud of Derek and everything he has done and continues to do for Mavs fans," owner Mark Cuban said in a statement. "His contributions can't be overestimated. We are excited that he will join Ro and Brad in the rafters as we retire number 12 forever."