Casilla will share closing duties with Sergio Romo from here on out, CSNCalifornia.com reports. Casilla picked up the save Saturday night against the Brewers, but not before making things interesting by a run on two hits and a hit by pitch. Though his numbers on the season remain sterling, Casilla has been only so-so since assuming closing duties in early July following Romo's ouster. Meanwhile, Romo has pitched dramatically better since moving to middle relief, and it appears he's regained the trust of manager Bruce Bochy. Both relievers should probably be held for now, but given Romo's proven success in the closer's role prior to this season, he should be viewed as the favorite to ultimately emerge as the victor in the job battle.