First half

Key play: Senior Travis Releford hit a three-pointer that gave KU a 40-25 lead.

Key stat: Jeff Withey blocked six shots, halfway to the school record.

Second half

Key play: Withey recorded his final block in the last minute, setting up a fast-break dunk for Ben McLemore.

Key stat: San Jose State outrebounded Kansas 45-41.

Peters leaving KU

Freshman forward Zach Peters is leaving the Kansas basketball program at the end of the fall semester, coach Bill Self announced Monday.

Self said that Peters, a 6-foot-9 forward, was battling lingering health issues and decided he needed to return home to Plano, Texas, to address his health before he mapped out the rest of his college career. Peters had dealt with a nagging shoulder issue, but Self also said Peters had suffered multiple concussions — including two since he arrived at Kansas.

“I hate that this is happening,” said Peters, who added that he needed to return home to heal. “I have really enjoyed my time at KU.”

According to Self, Peters has been diagnosed with four concussions since the beginning of his senior year of high school. He suffered one last summer after arriving in Lawrence and another in September. Peters, who was also a standout football player in high school, is still deciding whether he wants to continue to play sports. Self added that if Peters were his son, he’d probably suggest the same thing.

“He wants to move in a different direction,” Self said.

Peters was KU’s second-leading rebounder during its trip to Europe last summer. He averaged 5.0 points in the four-game stretch.

“I personally thought that Zach had a chance to a very good player at the University of Kansas,” Self said. “It’s a shame that these health issues have kept him from doing so. While the shoulder has improved, he’s still not 100 percent.”