Yes, players can get injured. That can happen in the first year of a contract of a 4 year contract, the 4th year of an 8 year contract, the 2nd year of a contract of a 5 year contract. Doesn't mean the players are slacking. When you own teams, you take on the risk that signing players to contracts, even ones that makes sense to do (like Mauer's), may end up not working out the way they want because injuries happen.It's that, or, you know, never keep any quality players past their first 6 years. Better just to completely avoid going after quality FAs or signing anyone for any length of time.