LOS ANGELES—A couple of newcomers helped produce a fourth straight victory for the Los Angeles Dodgers. Max Muncy hit a tiebreaking home run in the eighth inning and Billy McKinney went deep for the first time with Los Angeles in a 2-1 win over the Pittsburgh Pirates on Aug. 16. McKinney is filling in for injured All-Star Mookie Betts since being acquired July 21 from the Mets. His solo shot tied the game in the seventh, and he also had a big assist from right field in the third when his pinpoint throw cut down a runner at third base. “Billy really had a great night on both sides of the ball,” Dodgers manager Dave Roberts said. Andre Jackson made his major league debut in the second inning after being recalled earlier in the day. The 25-year-old right-hander allowed two hits in four innings, struck out five and walked four. …