Toronto Raptors' fans show their appreciation to Pistons' Jose Calderon, a former Raptors' player, during the NBA basketball game against Detriot Pistons in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)

Detriot Pistons' Brandon Knight (L) goes to the basket during the NBA basketball game against Toronto Raptors in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)

Detriot Pistons' Jose Calderon (R) goes to the basket during the NBA basketball game against Toronto Raptors in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)

Toronto Raptors' Kyle Lowry (L) goes to the basket during the NBA basketball game against Detriot Pistons in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)

Detriot Pistons' Rodney Stuckey (L) runs with the ball during the NBA basketball game against Toronto Raptors in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)

Toronto Raptors' DeMar DeRozan (L) goes to the basket during the NBA basketball game against Detriot Pistons in Toronto, Canada, April 1, 2013. Pistons won 108-98. (Xinhua/Zou Zheng)