When Victor Martinez first played in the big leagues in his early 20’s with the Indians, he remembered seeing all of the veteran players soaking in the hot tub after workouts. “They were like, ‘Wait until you’re 30,’” he said. “Now I know what they were talking about.” Martinez, the Detroit Tigers’ accomplished designated hitter who battled age, heart issues and clubhouse ire last season, reported to spring training Monday morning and reported himself to be at full health. “I did pretty much what I do in the offseason, its just that it took a little longer than usual,” he said. “But yeah, I mean, nothing special. I was able to do all my stuff.” Martinez’s 2017 season was cut short in late August when he had a second diagnosis of atrial fibrillation, leading to cardiac fibrillation surgery in September. At age 39, it appears Martinez is entering his final season in the Major Leagues, though he stopped short of declaring such on Monday. “I’m not going to do anything different than anything I’ve done my whole career,” Martinez said. “I’ve always taken it day-by-day, year-by-year, so we’ll see what happens.”