PHILADELPHIA — Adolis García has played parts of eight seasons in the majors, but he had never come in on an off day before arriving at Citizens Bank Park on Monday.García took batting practice and worked with his hitting coaches in a near-empty ballpark that day. He hit with the early group Tuesday and Wednesday. And he was the only Phillies player on the field taking batting practice before Thursday’s day game against the San Diego Padres. It is all part of an obsessive chase to recapture any semblance of who he was in 2023, to become better in any way after a dismal May.“We agreed (that), ‘We have to find a way to get out of this rut, slump right now,’” García said via team interpreter Diego D’Aniello on Wednesday. “That’s something we were all agreeing on: that we had to put a little more work in to try and get as good as we could.”Showing up on an off day is unusual for any hitter, even one going through a difficult stretch like García. But it might be paying off, as García went 3-for-10 against the Padres this week, including hitting his first homer in nearly a month on Thursday to help the Phillies to a season sweep of San Diego.The promising week follows a brutal stretch for the Phillies’ right fielder, who hit .125/.218/.182 with a .400 OPS and 38 strikeouts in May. Any improvement would make a difference for the Phillies’ lineup, whose right-handed hitters have been among the worst in the majors (.204/.266/.316 with a .581 OPS). Philadelphia needs any right-handed regular to step up — García or another hitter, doesn’t matter — to improve its chances of winning, and of winning by more comfortable margins.