Baseball: Alex Rodriguez denies doping report; Major League Baseball investigates

NEW YORK (AP) - Alex Rodriguez has denied a newspaper report on Tuesday that accused the Major League Baseball (MLB) star of buying human growth hormone and other performance-enhancing substances from a clinic in the Miami area.

The Miami New Times, an alternative weekly, reported that it obtained records detailing purchases by Rodriguez, Melky Cabrera, Gio Gonzalez, Bartolo Colon, Nelson Cruz and Yasmani Grandal from a clinic called Biogenesis, run by Anthony Bosch.

The paper also posted copies of what it said were Bosch's handwritten records, obtained through a former Biogenesis employee.

Rodriguez admitted four years ago that he used performance-enhancing drugs from 2001-03. Cabrera, Colon and Grandal were suspended for 50 games each last year by MLB following tests for elevated testosterone.

"We are always extremely disappointed to learn of potential links between players and the use of performance-enhancing substances," MLB said in a statement.

"Only law enforcement officials have the capacity to reach those outside the game who are involved in the distribution of illegal performance-enhancing drugs... We are in the midst of an active investigation and are gathering and reviewing information."

A baseball official, speaking on condition of anonymity because he was not authorised to make public statements, said Monday that MLB did not have any documentation regarding the allegations.

If MLB does obtain evidence, the players could be subject to discipline. First offences result in a 50-game suspension and second infractions in 100-game penalties. A third violation results in a lifetime ban.

"The news report about a purported relationship between Alex Rodriguez and Anthony Bosch are not true," Rodriguez said in a statement issued by a publicist. "He was not Mr. Bosch's patient, he was never treated by him and he was never advised by him. The purported documents referenced in the story - at least as they relate to Alex Rodriguez - are not legitimate."