Minnesota Vikings wide receiver Percy Harvin announced via his Twitter page on Saturday that he was going to be having "minor surgery." Harvin was placed on injured reserve on Dec. 6 after suffering a seriously sprained ankle against the Seahawks about a month earlier. Harvin did not disclose what he was having surgery on, but it stands to reason that it's related to that injury.

Before getting hurt, Harvin was having a great season. In nine games, he caught 62 passes for 677 yards and three touchdowns, rushed for another touchdown, and also returned a kickoff for a touchdown.

Harvin has an unfortunately substantial injury history. He's battled migraine headaches since he was in college, and has also had to fight through rib and hamstring issues at various points.

The Vikings play the Rams on Sunday in St. Louis and need a win to keep the playoffs a realistic possibility.