This Year's Nick Johnson?

Not to jinx anyone, and I do hope I'm wrong, but I think Russell Martin will be this year's Nick Johnson. His knee still isn't ready to go, and all this talk of stiffness has me a little worried. The Yanks aren't pushing it, but a surgically repaired knee (and hip) is a surgically repaired knee (and hip). It's not even about setbacks. Maybe it's not 100% because it's not the same knee anymore. I hope I'm wrong, but if I had to guess at the player least likely to contribute this year due to injuries, right now I'm looking at Martin.