The headline more or less says it all.
Sam Amick places the absence at anywhere from 19-32 games, depending on the remedy (rehab versus surgery). Instead of going with Francisco Garcia, Orien Greene, or Quincy Douby in the starting lineup, Geoff Petrie's talking about going out and getting a veteran on the cheap. Gary Payton, Earl Boykins and Mike Wilks are mentioned. There's also the possibility to pick up a one-guard from Houston, and I'd add Seattle to that mix.
More on the impact on the team later today.