Baez is 2-3 with a 3.25 ERA for Los Angeles this season. The 30-year-old Baez has appeared in 28 games for the defending National League champions but has struggled with his command. Baez has allowed 16 walks in 27⅔ innings of work.
Manager Dave Roberts called the decision to send down Baez difficult, adding that while Baez took the news like a professional, he was also upset. Roberts called the move necessary because he wanted to make sure Los Angeles had enough long relievers on the roster with the 21-year-old Ferguson and 22-year-old rookie Dennis Santana scheduled to pitch on Wednesday and Thursday.