The Seattle Mariners have activated ace starting pitcher Felix Hernandez from the 15-day disabled list. He'll start against the Chicago White Sox on Wednesday afternoon. 

Hernandez, 30, has missed nearly the past two months with a calf strain. This moves comes after he struck out seven batters while allowing zero hits in four innings in Triple-A on Friday. 

The former Cy Young winner has posted a 4-4 record with a 2.86 ERA and 1.22 WHIP in 10 starts on the season.