Joel Sherman of the NY Post writes that with the acquisition of Mark Teixeira, the Yankees will trade one of Damon, Matsui, Nady or Swisher (h/t MLBTR).
Each player has pros and cons:
Damon - best outfielder of the bunch, can play centerfield, good leadoff hitter, good speed, can't throw for his life, misses time every year with nagging injuries, wrong side of 30.
Matsui - best overall hitter of the group, worst fielder, wrong side of 30, coming back from a serious injury.
Nady - solid all-around player, had career year in 2008 with Pittsburgh, disappointing in the Bronx, just turned 30.
Swisher - can play 1b and OF, only 28, great plate discipline, good power, but will he rebound from a poor '08?
It looks that Matsui might be the one traded. He makes a lot of money ($13 million), can't play the field, and gets injured too often. The others are all more versatile, while Swisher and Nady are also younger and healthier.
[update 5:05 - no out-out clause for Tex]