Last Update on January 07, 2009 03:30 EST

CHARLOTTE, N.C. (AP) -- Raymond Felton scored 25 points, rookie D.J. Augustin added 11 of his 20 points in overtime, and the Charlotte Bobcats stunned Boston 114-106 on Tuesday to continue the Celtics' sudden slide.

Beaten by their surprising nemesis for the second time in two seasons, the defending champions came undone in OT, and they've quickly gone from unbeatable to vulnerable.

After a team-record 19-game winning streak and an NBA-record 27-2 start, the Celtics lost for the fifth time in seven games, leaving battered, bruised and angry by Larry Brown's upstart Bobcats.

Paul Pierce scored 28 points, but had a key turnover in overtime. Ray Allen scored 20 points on 7-of-20 shooting for the Celtics.

RALEIGH, N.C. (AP) -- North Carolina State women's basketball coach Kay Yow will not return to the team this season due to health issues related to her long fight against cancer.

In a statement released by the school Tuesday afternoon, the Hall of Fame coach said she just doesn't have the energy to coach the way she always has before. She has missed the past four games.

Yow said she will revisit the decision no later than the end of the season.

Yow was first diagnosed with breast cancer in 1987, and the disease recurred in the 2004-05 season. Yow also missed 16 games to focus on treatment two seasons ago. Associate head coach Stephanie Glance has led the program in her absence.

The Wolfpack faces unbeaten and second-ranked North Carolina on Sunday.

RALEIGH, N.C. (AP) -- North Carolina State quarterback Russell Wilson won't need surgery to repair the knee he injured in the Papajohns.com Bowl.

School officials say that an MRI this week confirmed doctors' initial diagnosis of a sprained knee and a torn posterior cruciate ligament.

The Atlantic Coast Conference rookie of the year didn't return after he was hurt in the second quarter of the Wolfpack's 29-23 loss to Rutgers.

School officials say Wilson will have several weeks of limited activities followed by functional rehabilitation.

Wilson was 11-for-23 for 186 yards and a touchdown and rushed for 46 yards in the game. He finished the season without throwing an interception in his final 249 passes -- the nation's longest active streak.