Fernando Tatis Jr. is feeling a lot better, a huge relief to the star San Diego shortstop, his team and his many fans. A day after Tatis walked off the field during an exhibition game in a worrisome scene, the Padres said the discomfort in his left shoulder had improved. In fact, the flashy 22-year-old wanted to play Wednesday night against San Francisco in Scottsdale, Arizona. No way, said manager Jayce Tingler. The manager said after Tuesday’s game that Tatis has been dealing with a minor shoulder issue for a few years. Tingler said he doesn’t know when Tatis first encountered the shoulder trouble.