SAN DIEGO — Winning the day after your best player was placed on the 10-day injured list was never going to be easy, but the Phillies pulled it off of Sunday, with a 8-5 victory over the San Diego Padres. Everything seemed to click, with the exception of a poor start from Kyle Gibson; the bullpen looked great, the offense tallied up 13 hits and the defense was solid. The Phillies are now 39-35 and will head back to Philadelphia to take on the Atlanta Braves at home in a three-game set. Castellanos with a good day at DH When Bryce Harper was diagnosed with a small tear in his right UCL in mid-M…