A number of MLB teams are not at full strength at this point in the year because some of their players are still recovering from offseason surgeries and spring injuries.
These players can provide a big boost once they return, and they can help change a team from one that is struggling to one that is fighting for a playoff spot.
Sometimes, the impact is more than what the player does on the field. In certain cases, their leadership ability is invaluable.
The following players will have a big impact on their team's performance once they return.