Third baseman Manny Machado admitted that he was worried about his first game back Saturday after missing the previous four because of lower back spasms. But he said he didn't feel his back tighten at all during Saturday's game or after it, and he said he was able to play 100 percent without any pain. He said he will have no limitations with the back going forward. He started at third base Sunday and batted seventh. … Pitching coach Dave Wallace will leave the club Friday and Saturday to attend his daughter's wedding. Pitching rehab coordinator Scott McGregor will serve as interim pitching coach. "Scotty knows all the players, the players know him, " Showalter said. "It's a real good fit for us, and it doesn't disrupt the minor leagues that much." … Delmon Young recorded his second multihit game of the series Saturday. He entered Sunday hitting .317/.344/.455 in 123 at-bats, including a .351/.392/.486 line in 74 at-bats against left-handers. … Outfielder Henry Urrutia, who has been on the minor league disabled list following sports hernia surgery, was activated by Triple-A Norfolk and started Sunday for the Tides. Infielder Buck Britton was transferred to Double-A Bowie to make roster room for Urrutia.