College basketball rankings: Purdue jumps to No. 1 in updated AP Top 25 poll with Kansas slipping to No. 5 | CBS Sports Headlines College basketball rankings: Purdue jumps to No. 1 in updated AP Top 25 poll with Kansas slipping to No. 5 The Boilermakers are back in the … Continue reading College basketball rankings: Purdue jumps to No. 1 in updated AP Top 25 poll with Kansas slipping to No. 5