We know Rangers closer Eric Gagne has some kind of no-trade protection in his contract, but further details were unknown. Jon Heyman of SI.com recently clarified a bit.
Apparently Gagne has given the Rangers a list of 12 teams he can be traded to. Heyman says that almost all of those allowable 12 are not in contention or would have no motivation to trade for him. Heyman also believes that the Tigers, Indians, and Phillies are not among the 12 allowable teams. So if one of those wants Gagne, they'll need his approval and his salary will escalate.
Meanwhile, Bill Madden of the New York Daily News speculates that Lou Piniella might urge Jim Hendry to acquire Gagne to solidify the Cubs' bullpen.