Harvin was injured in the final two minutes of the fourth quarter of the Jets 30-24 loss against the Minnesota Vikings - arguably his best game since being traded from the Seattle Seahawks with five catches for 124 yards and a touchdown.
He was in a walking boot Monday after the good news that it wasn't a high-ankle sprain, which usually takes several weeks of recovery.
Despite the positive news, Harvin may not be back in action on Sunday against the Tennessee Titans.
"What that means for Sunday, I'm not real sure," Rex Ryan said. "It probably doesn't look that great, but we'll see as it progresses."
Though, judging by Harvin's past recovery periods, it might not be a quick one - he missed 22 games in 2013 and 2013 combined.
With three games remaining, it might be cutting it close for Harvin to return this season and while we're sure the Jets players and coaches want to add some wins before the season is out on this season, with 10 losses already they'd be justified in shutting Harvin down.
Harvin has been one of the best skill position players for the Jets in recent weeks. No matter who comes in next year, the Jets would be wise to hang onto Harvin because the level of talent on offense has been better all around with the arrival of Harvin, regardless of any injury or discipline concerns.