ST. LOUIS—Yadier Molina left the game in the fourth inning with a bruised knee, and the St. Louis Cardinals extended a losing streak to four for the first time this year with a 5–2 defeat to the Cincinnati Reds on Saturday. “It’s just not going our way at the moment,” Cardinals manager Mike Shildt said. “It’ll turn. I appreciate the how guys are competing because sometimes you don’t get the end result, but it’s how you go about it. These guys are laying it all out there.” The 38-year-old Molina, a nine-time All-Star catcher, and nine-time Gold Glove winner, took a foul tip off the bat of Kyle Farmer off his left knee in the fourth inning, Molina initially stayed in the game after he was examined by head athletic trainer Adam Olsen but appeared to be limping. “It’s a bone contusion on his knee,” Shildt said. “It could have …