Vlad has plenty to prove as postseason approaches

Put Yankees third baseman Alex Rodriguez and lefthander CC Sabathia at the top of the list of players with the most to prove in October. As mega-millionaires, they are expected to produce in the playoffs. For the most part, neither has. But let's look now at another superstar. The Angels' Vladimir Guerrero belongs high on the list, too, for different reasons: No matter what the Yankees do in October, A-Rod and Sabathia know where they will play in 2010. Guerrero does not. His six-year deal with the Angels is up after the season and they haven't shown great interest in bringing him back (L.A. has a $15 million team option for 2010), even though he has given them fair return on their $85 million investment. Guerrero has won an A.L. MVP award, made four All-Star teams and his .319 batting average is the fourth-best mark in the majors since he moved West. Even if A-Rod and Sabathia again fall short of expectations, they will be considered among the game's el...