San Francisco 49ers left tackle Joe Staley recently downplayed the significance of a procedure he underwent to repair a damaged meniscus in his left knee.The two-time Pro Bowl choice called the surgery "very minor but necessary" and said he would be full strength by training camp.These sorts of procedures are part of the job description in the NFL.Staley has actually been pretty fortunate along those lines recently. He has started every game over the past two seasons.