BALTIMORE—Rombauer left Medina Spirit behind—and put horse racing’s latest controversy on the back burner. Little-known Rombauer sprung an 11-1 upset to win the Preakness on Saturday, passing Bob Baffert’s Kentucky Derby winner to end a potential Triple Crown bid that would have carried a giant asterisk. Medina Spirit finished third and will not go on to the Belmont with a Triple Crown on the line and a potential Derby disqualification hanging over the sport. “A little disappointed, but we’ll go on from here,” said assistant trainer Jimmy Barnes, who saddled the horses in Baffert’s absence. Baffert was not present at Pimlico Race Course, opting to stay away because of the controversy surrounding Medina Spirit, who tested positive for the steroid betamethasone in post-Derby testing. He said in a spotlight-stealing statement hours before the race: “Today is not about Bob Baffert. Instead it is about Medina Spirit and all of the …