Batum to have surgery; return unknown

PORTLAND, Ore. -- Portland Trail Blazers forward Nicolas Batum will undergo surgery on his right shoulder to repair torn cartilage.

The team said Monday a return date will be determined after Friday's surgery in Los Angeles.

Batum appeared in 79 games as a rookie last season, starting 76. He averaged 5.4 points and 2.8 rebounds while earning praise for his defensive ability.

The Trail Blazers open the 2009-10 season at home Tuesday against Houston.