The trade deadline is less than two weeks away and there is no doubt that several high-profile players will be changing teams before it passes. Players like Matt Garza, Cliff Lee and Chase Utley could all be dealt soon and may end up having huge impacts on playoff races.
Even the teams in first place coming out of the All-Star break know they have holes to fill, and now that there are two Wild Card spots, more teams feel they can make a run, and you can bet that the players on this list will be pursued heavily.
The following players are ranked according to the impact they can have if traded.
Present and past statistics, as well as present ability, are the best ways to judge the impact a player might have if traded.
It is also important to note how a player's current environment factors into their statistics. A power hitter who plays in a big park might not have great numbers, but could do a lot for a contending team that plays in a hitters' park.