Can Wes Welker Rise Again or will his Knee be his Achilles' Heel

Wes Welker, the scrappy, undersized, Wide Receiver for the New England Patriots is said to be improving in many reports from his season ending injury last season. Welker, who missed the end of the season last year with a knee injury, is participating in practice and is said to not only be in good spirits, but in excellent health. While I am very happy to see Wes doing well (having owned him in multiple leagues for the last few years) I don't know that the knee injury is going to allow for Wes to go across the middle out of the slot. Welker has taken a beating throughout his entire career coming across the middle and still being amongst the league leaders at Wide Receiver. This season I would expect for Welker to be a solid number 2 receiver on most Fantasy Teams, especially if you can find him around the 3rd or 4th round, but I would be wary because with the type of injury Wes sustained it only becomes easier to repeat and then you are down a receiver.