The Guardians signed Valera (knee) to a minor-league contract Monday that includes an invitation to spring training.
Valera was diagnosed with a patellar tendon rupture in his right knee Monday, Mandy Bell of MLB.com reports.
Valera was placed on Triple-A Columbus' 7-day injured list Friday due to a right knee strain.
Triple-A Columbus reinstated Valera (hamstring) from its 7-day injured list Wednesday.
Triple-A Columbus placed Valera (hamstring) on its 7-day injured list Friday.
Valera (hamstring) was optioned to Triple-A Columbus by the Guardians on Friday.
Valera is expected to miss a few weeks due to a strained hamstring, Mandy Bell of MLB.com reports.
Valera will serve the final game of a six-game suspension Tuesday for Triple-A Columbus, Guardians Prospective reports.
Valera, who has had an injury-plagued season, is active for Triple-A Columbus and hitting .136 with one extra-base hit, 10 walks and 13 strikeouts through 13 games.
Valera (hamstring) went 2-for-3 with a home run, a double and two RBI in Tuesday's Arizona Complex League game versus the Rockies' rookie-ball affiliate.