"Felix was back to being Felix today," pitching coach Carl Willis said after Hernandez threw 58 pitches off the bullpen mound. "He was strong, threw all of his pitches for strikes and had great command. The plan is for him to go Sunday in Anaheim."
Hernandez initially threw a bullpen Monday in Detroit in the hope of starting Wednesday against the Tigers, but the decision was made then that he needed one more workout Thursday to regain his timing.
"You can book it, Sunday," Hernandez said after completing his session.
Erasmo Ramirez will start Friday's series opener against the Angels and Joe Saunders has been slated for Saturday's game.
By starting Sunday, Hernandez would be in position to make one more start at home in the season's final home series against the A's the following weekend.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.