Will Harvin play again this season? Vikings aren't sure
Harvin's ankle injury that he suffered in Week 9 has ended up causing far more problems than the Vikings initally expected, and it's possible that he has a complete ligament tear. It's worth noting that coaches are rarely as pessimistic as Frazier was in his response - if anything, they generally make the injuries seem less severe than they actually are. Harvin looks like a long shot to return during the regular season, which really hurts a team that is just one game out of the second wild card spot in the NFC.
Harvin is far and away the second best offensive player on the Vikings (Adrian Peterson being the best, of course), and the passing game has really struggled as a result of his absence, averaging only 128.5 passing yards per game since the week of his injury.
Harvin was playing as well as any receiver in the league before he got hurt. Through his first eight games (he got hurt in his ninth), he was on pace for 120 catches, 1334 receiving yards, and 10 all-purpose touchdowns. He was having the best year of his career, so it's unfortunate to see him go down like this, especially after proving to be so tough during his NFL tenure, repeatedly playing through nagging injuries. However, I'd expect him to come back next year at full strength, ready to play even better and finish out the season as healthy as possible.
You can't really drop him in fantasy leagues just yet, as he is one of the biggest fantasy difference makers when he's on the field, but don't get your hopes up about him returning for your playoff run. Keep checking on his status, however, as you may soon find out that you can send him to the waiver wire.