Steve Blake of the Washington Wizards will miss 10-12 weeks after injuring his ankle in a pickup game.

Blake underwent surgery Wednesday to remove a chipped bone from his right ankle, and will be out the first 13 games of the regular season.

"It is an uncommon injury, but we expect Steve to make a full recovery," president of basketball operations Ernie Grunfeld said.

As a rookie last season, Blake played in 75 games, started 14 and averaged 5.9 points and 2.8 assists. He was a second-round draft pick after leaving Maryland as the school's all-time leader in assists.