Yankees managing general partner Hal Steinbrenner says he's concerned about the latest drug allegations swirling around third baseman Alex Rodriguez but that the matter is being looked at by Major League Baseball.The Miami New Times reported late last month that the three-time AL MVP bought human growth hormone and other performance-enhancing substances in recent years from Biogenesis of America LLC, a now-closed clinic in Coral Cables, Fla., near Rodriguez's off-season home.Speaking on Friday at the Yankees' minor league complex, Steinbrenner said the situation is "a concern, but it's out of our hands.""We will cooperate with MLB in any way we can, any way we're asked to," he said. "But other than that, there's not much to say. I don't know any more than you do."Rodriguez has denied the allegations. He admitted four years ago that he used PEDs from 2001-03, his years with the Texas Rangers.Steinbrenner addressed a number of other topics, including the contract status of second baseman Robinson Cano, a potential free agent after the upcoming season."There's been a conversation or two," Steinbrenner said. "We'll get into that, and we'll talk about that at a later date. But he's obviously been a great Yankee, and [we] hope he's here his entire career."D-backs extend HillArizona and Aaron Hill reached a deal that will keep him under contract through the 2016 season.The deal adds three years and $35 million to his existing deal, which pays him $5.5 million this year. That means the overall contract is worth $40.5 million over the next four years.The 30-year-old second baseman hit a career-high .302 with 26 home runs, 44 doubles and 85 RBIs last season, earning him a Silver Slugger award, the first for a Diamondbacks infielder.BrieflyCardinals: The team and David Freese reached agreement on a one-year contract that avoids salary arbitration. Terms of the deal were not disclosed.Mets: Reliever Brandon Lyon signed a one-year deal.Marlins: Florida signed third baseman Chone Figgins to a minor-league contract with an invitation to major-league camp beginning next week.