The Chicago Cubs placed right-handed pitcher Carlos Silva on the 15-day disabled list on Monday as he undergoes a cardiac evaluation.
Silva was forced to leave Sunday’s 8-7 loss to Colorado after one-third of an inning due to an irregular heart rate.
Silva received the loss despite facing just four batters, allowing two hits and two runs. He complained of difficulty breathing and was removed, and paramedics diagnosed him with the abnormal heart rate.
To fill out the roster, the club recalled right-handers Casey Coleman and Thomas Diamond from Triple-A Iowa.