Alex Rodriguez despite his myriad off-the-field troubles has been the best offensive threat behind Alfonso Soriano of late but the slugger tweaked his left hamstring Tuesday night when he rounded third base and scored on a Robinson Cano RBI single in the 8th inning. He appeared to grimace on the dugout bench after sliding into home and was replaced by David Adams in the bottom half. "I just felt a little knock coming around third said A-Rod. “But I iced it and saw the doctor. Both checked out ok." Joe Girardi said Rodriguez could DH Wednesday and the third baseman agreed. A-Rod was 2-for-4 with two doubles an RBI and a run scored. He is batting .301. “I feel like I’m explosive. I feel like I have an opportunity to hit the ball and drive it to all fields. I felt that last at-bat was indicative of how I’m feeling especially lately” he said. OH CAPTAIN NO CAPTAIN A Derek Jeter sighting in the Camden Yards visiting clubhouse has become almost as rare as a Bigfoot appearance with the Yankee captain remaining out of the media’s range Monday and Tuesday while he nurses his sore surgically-repaired left ankle. But in a move to provide insurance at shortstop – in the event that Eduardo Nunez gets injured - the Bombers acquired infielder Brendan Ryan from Seattle in exchange for a player to be named later. In 87 games with the Mariners this season (79 starts at SS) Ryan batted .192 (50-for-260) with 23 runs 10 doubles 3 homers and 21 RBI. Cashman completed the trade during the game. Jeter had a slight limp exiting the clubhouse Tuesday night and he has not yet spoken to reporters during this four-game series here. He was pulled from Saturday’s game against the Red Sox in New York but a CT scan came back negative. While Joe Girardi said Tuesday that the shortstop is “in a holding pattern” GM Brian Cashman ruled out shutting down the 39-year-old Jeter for the remainder of the season. “We don’t think that. It’s nothing like that. If it becomes that I’ll tell you but otherwise we’re more in a day-to-day mode” Cashman said. “The bottom line is his mobility was definitely becoming more limited with the pain he was receiving so we backed off and when he’s feeling better we’ll turn him loose again. If he was moving around and he was pain-free he’d be back out there.”