Cubs outfielder Clint Frazier is headed to the injury list with appendicitis, the team announced Friday.
The Cubs also provided injury updates on three other players:
Pitcher Wade Miley (elbow) pitched a bullpen session Friday.
Pitcher Alec Mills (back) will get a rehab start with Class AAA Iowa on Saturday.
Shortstop Andrelton Simmons (shoulder) is continuing throwing and hitting work in Arizona.