Two of the best power hitters in the National League have now crossed over to the American League. The list of American League first basemen is now a who's who of baseball's best hitters—Fielder, Albert Pujols, Mark Teixeira and Adrian Gonzalez. That's not even including the Tigers first baseman last year, Miguel Cabrera, Paul Konerko or young future star Eric Hosmer.
Crossing leagues isn't always easy. Some players such as Cabrera made it look easy. Gonzalez's transition last year was fairly seamless as well.
Prince Fielder is not going to have too many problems making this transition either.