The Guardians activated Valera (calf) from the 10-day injured list Monday.
Out since Opening Day with a left calf strain, Valera slashed .294/.325/.500 with two home runs and a 3:3 BB:K in eight rehab games with Triple-A Columbus. Valera will likely push Angel Martinez for playing time in the outfield, though manager Stephen Vogt could stick with Martinez for the time being while the latter is swinging a hot bat. Valera will be on the bench Monday for the Guardians' series opener versus the Cardinals.