GLENDALE, Ariz.–Madison Bumgarner will take the mound on Sunday at Scottsdale Stadium, lining up the Giants’ ace to pitch on Opening Day at Dodger Stadium.

On Saturday afternoon, Giants’ manager Bruce Bochy said catcher Buster Posey tweaked his ankle and won’t be in the lineup for Bumgarner’s spring debut. However, on Sunday morning, Posey’s name was listed on the lineup card and he said he’s planning to catch Bumgarner. Posey said his ankle was not bothering him.

The Giants defeated the Dodgers 9-3 at Camelback Ranch on Saturday, but Brandon Belt was the only regular position player who traveled with the team. Due to an early spring start date, the Giants want to slow-play their starters during the first weekend of Cactus League contests.

Bochy explained that Joe Panik and Hunter Pence will make their spring debuts on Sunday, and newcomer Evan Longoria will serve as the designated hitter. Gorkys Hernandez will play center field and prospect Steven Duggar will substitute in and split the game with Hernandez.

The club is being conservative with shortstop Brandon Crawford and free agent signee Austin Jackson, as neither will play until March 1 when the Giants host the Angels. The Giants’ skipper said the team wants Crawford to build up strength in his throwing arm before he takes the field, because he’s suffered from arm issues in previous years. Jackson isn’t injured either, but the Giants want to ensure his legs are in good condition before he roams the outfield.

With Jackson out, Hernandez will become the third different starter in center field in three games for San Francisco. Duggar played in the opener against the Brewers while non-roster invitee Gregor Blanco patrolled center field on Saturday. Blanco led off the contest with a triple, and singled in a later at-bat.

Bochy is flying to San Diego on Sunday morning to attend a celebration of life for former Padres’ general manager Kevin Towers. The duo worked together from 1995-2006 and remained close friends. Towers died on January 30 after a 14-month battle with thyroid cancer. He was 56.

Bench coach Hensley Meulens will manage the Giants in Bochy’s absence.