Tanaka is expected to miss at least a month, but with hamstring injuries, as Jacko knows, it could be much longer. Some medical people think that they never really completely heal.
Masahiro Tanaka to DL with hamstring injury
WWW.MLB.COM
NEW YORK -- Masahiro Tanaka is expected to miss about a month due to low grade strains in both of his hamstrings, said Yankees general manager Brian Cashman, who believes that the club has internal options capable of filling the vacancy in the rotation.Tanaka sustained the strains while tagging up