TORONTO (AP) Raptors guard Alvin Williams will have arthroscopic surgery on his inflamed right knee Friday and is expected to be sidelined indefinitely.

Williams missed the previous two games. He is averaging 8.9 points and 4.1 assists in 54 games.

The Raptors already are without Vince Carter and Jalen Rose _ both are on the injured list. Toronto has lost a season-high seven straight games.