Plouffe's right intercostal strain still bothers him when he swings, and will be checked out on Monday, Mike Berardino of the Pioneer Press reports.
It appears Plouffe isn't fully recovered from the intercostal strain that placed him on the disabled list in April. He insists that he is okay and will keep playing, however his performance since returning has been a bit lackluster, getting just three hits in his last 20 at-bats. His two-hit performance Sunday was easily his best performance since returning from the DL.