Major League Baseball has secured copies of medical records for the stem cell procedure that Yankees pitcher Bartolo Colon underwent last year in the Dominican Republic, but the question of whether Colon was treated with human growth hormone could still be unresolved, according to the New York Times.
Colon and two doctors have denied the use of HGH in the procedure on Colon's elbow, even though one of the doctors -- Joseph R. Purita of Boca Raton, Fla. -- has used HGH in similar stem cell treatments in the past. Purita didn't perform the procedure, but was overseen by Purita.
MLB has asked for the paperwork more than two months ago but didn't receive them until Tuesday. One of the doctors said he didn't receive written notice that MLB requested the records.
There's further confusion because the doctor, Sergio Guzman, claims he has yet to be paid by Colon. Guzman told the newspaper that the two had agreed to pay 4 percent of any future contract for the treatment. Colon signed a one-year deal with the Yankees for $900,000.
Colon, 38, didn't play in 2010 and was 14-21 with a 5.18 in the four years before 2010. This season he's 6-5 with a 3.47 ERA but had his worst start of the season on Thursday, lasting just 2/3 of an inning and allowing eight runs in a loss to the Blue Jays.For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.