Dodgers transfer pitcher Rich Hill to 60-day injured list
The 39-year-old left-hander went on the IL June 20. He is 4-1 with a 2.55 ERA in 10 starts this season.
Sadler was added to the 40-man roster and optioned to Triple-A Oklahoma City.
The 28-year-old was 0-0 with a 1.86 ERA in nine games for the Rays. Sadler has spent part of four seasons in the major leagues with the Rays and Pittsburgh Pirates.
Witt was 1-2 with a 5.32 ERA in 22 games for Single-A Great Lakes. The 23-year-old had been with the Dodgers since 2017, all in the minors.