Leclerc has been bothered by discomfort in the finger for the last several days and has appeared in just three of the last 12 Rangers' games, including Sunday at Seattle (0.2 IP, 0 H, 2 R-ER, 3 BB, 1 SO). He has gone 0-1 with a 2.31 ERA (3 ER/11.2 IP) and one save over total 10 appearances with Texas this season. The first day he would be eligible to return is May 18.
Alvarez returns after being optioned to Round Rock on Sunday. The lefthander has spent the rest of 2017 with the Rangers, going 1-0, 3.00 (3 ER/9.0 IP) in 10 appearances.
Texas opens a two-game series against the Padres in San Diego on Monday night.