Liranzo, 23, had a 4.85 ERA in Double-A Bowie last year, with 75 strikeouts and 43 walks in 65 innings. He made 12 starts and 19 relief appearances but in his minor league career has pitched mostly in relief, with 76 of his 91 appearances out of the bullpen.
Baltimore designed Liranzo for assignment on Wednesday.
The right-hander has 202 strikeouts in 170 minor league innings, but also 103 walks. Liranzo will be optioned to Double-A Tulsa.
Liranzo has two option years remaining, having used one in 2017.
Ysla, who turns 26 in April, was acquired by the Dodgers last July and spent about five weeks on the 40-man roster. The lefty had a 5.28 ERA in 36 relief appearances in a pair of Double-A stops last year, including a 6.17 ERA in seven appearances with Tulsa, with eight strikeouts and seven walks in 11 innings.
To make room for Liranzo on the 40-man roster the Dodgers transferred pitcher Tom Koehler to the 60-day disabled list. This doesn’t really change much for Koehler, who continues his rehab of his right shoulder strain but has yet to pick up a baseball, other than that the earliest possible date he could be activated now is May 25.