UPDATE: Packers head coach Mike McCarthy said Wednesday that Nelson would be a "longshot" to play Sunday, according to the Packers official Twitter account. He did participate in Wednesday's practice.
Speaking with reporters on Monday, Packers head coach Mike McCarthy said Nelson was "getting better" and that he was hopeful his receiver could play when Green Bay takes on the Chicago Bears Sunday.
Nelson missed the Packers' Week 14 win over the Detroit Lions with a hamstring injury.
Via Ty Dunne of the Milwaukee Journal-Sentinel:
McCarthy on Lang, Nelson returning: Hope so. Talked to Jordy last night. He's getting better.
— Tyler Dunne (@TyDunne) December 10, 2012
Nelson was ruled out by Friday last week, meaning he wasn't close to playing. He did not practice during the week and appeared far from returning.
McCarthy's optimism to start this week is at least a step in the right direction.
After catching 68 passes for 1,263 yards and 15 touchdowns in 2011, Nelson has just 46 catches for 658 yards and six touchdowns in 11 games this season.
However, this isn't Green Bay's first time dealing with an injury to Nelson.
On two separate occasions, Nelson's hamstring has caused him problems. After initially picking up the injury during practice on Oct. 24, Nelson re-tweaked the hamstring during the Packers' win over the Minnesota Vikings on Dec. 2.
Nelson missed one week with the original hamstring injury. He started the next week against the Arizona Cardinals, but then sprained his ankle trying to catch a poorly-thrown pass from quarterback Aaron Rodgers. Thanks to the bye week, Nelson did not miss any game time with the ankle injury.
Then came the second hamstring injury, which has kept him out of the majority of the last two weeks.
Much like the first go-round, it's possible that the Packers will hold Nelson out of practice for most of this week before testing the hamstring on Friday or Saturday. If the hamstring responds well, Nelson could play against the Bears Sunday in Chicago.
Given a healthy Greg Jennings is back in the mix, the Packers do not necessarily need to rush Nelson back before the start of the postseason.
Be aware of updates later in the week. Even if Nelson doesn't practice Wednesday or Thursday, he'll have a chance to play if he can pass the necessary testing on Friday or Saturday.