Mizzou point guard Ricky Clemons was named the Big 12 Rookie of the Week yesterday. Clemons averaged 22.5 points and seven assists in two wins last week. It’s the second time he’s won the award. Mizzou moved up three spots in the AP and coaches’ poll yesterday. They face Centenary tonight in their final tune-up before the Big 12 season begins. The Tigers host Baylor on Saturday.