SAN DIEGO — Twenty minutes after a game that concluded one of the longer days of his career, Jake Cronenworth pointed to a spot in front of his locker. There, on the carpet of the San Diego Padres’ clubhouse, was a fleck of dried blood. It had been more than five hours since Cronenworth took a bad-hop ground ball to the nose during infield practice, briefly putting the rest of his season in doubt.And it had been a little more than two hours since he committed a costly error in the top of the first, then launched a three-run drive in the same inning. Following Tuesday’s 4-1 victory over the Arizona Diamondbacks, Cronenworth spoke in terms that were both literal and metaphorical.“You get smacked in the face there in the first inning and then homer — it’s just the cherry on top,” he said. “What a day.”The Padres would like to avoid many more days like it.After nearly losing Cronenworth — who returned last week from a lengthy stint on the concussion injured list — they watched star third baseman Manny Machado crumple to the ground after fouling a ball off his left big toe in the bottom of the third. An inning later, outfielder Samad Taylor exited after feeling a twinge in his side on a swinging strikeout. It all felt like overkill for a team that had suffered nine losses and three other injuries over the previous 10 games.