Bill Walker will have elbow surgery.

In the midst of a rotation that has recently reached nearly full health and nearly full staffing, Bill Walker is the only Knick still restricted by an injury. Just now, we learned that he'll be restricted for quite some time. Via Tina Cervasio, he'll have surgery on that sore elbow tomorrow:

The #Knicks just announced forward Bill Walker is scheduled to have a left elbow debridement on Monday. He is expected to miss 4-6 weeks.

Basically, Bill Walker has a lot of crap in his elbow that isn't supposed to be there (Tostito crumbs, gum wrappers, pigeon feathers, scar tissue), and they have to take it out. Walker was likely going to be buried in the rotation anyway, so this setback might very well end his season ("four to six weeks" = "pretty much the rest of the regular season"). Best of luck to Bill, and may that left elbow be clean as a whistle from Monday forward.

Game thread comin' up in a couple hours.