Marcos Mateo has been returned to the Cubs.
Diamondbacks selected RHP Marcos Mateo from the Cubs in the 2013 Rule 5 draft.
Cubs sent RHP Marcos Mateo outright to Triple-A Iowa.
Marcos Mateo underwent Tommy John surgery on his right elbow Friday.
Cubs placed RHP Marcos Mateo on the 60-day disabled list with a right elbow injury.
Marcos Mateo will be shut down for ''at least 10 days,'' following an MRI on his right elbow.
Marcos Mateo is scheduled to undergo an MRI Thursday night on his right forearm.
Marcos Mateo was pulled from Thursday's Cactus League game with an apparent arm injury.
Marcos Mateo is expected to miss 4-5 weeks with a right forearm strain.
Cubs placed RHP Marcus Mateo on the 15-day disabled list with right elbow inflammation.
Marcos Mateo exited Monday's game against the Nationals due to a right shoulder injury.
Marcos Mateo left Monday's game against the Nationals in the 10th inning with an apparent injury.
Marcos Mateo pitched five scoreless innings and struck out six in relief against the Giants on Thursday.
Cubs recalled RHP Marcos Mateo from Triple-A Iowa.