Nolan Ryan pulled his left calf muscle...

Nolan Ryan pulled his left calf muscle in a minor league exhibition game at Port Charlotte, Fla., and may not be able to pitch when the season begins in 10 days.

Ryan, 42, who signed a one-year contract with the Texas Rangers last December for a guaranteed $2 million, said he felt the pull as he ran to cover first base for Tulsa of the Class AA Texas League, which was playing a Baltimore farm team. Ryan faced three batters, throwing 14 pitches, before departing.

Bill Zeigler, the Texas trainer, said he did not believe it was a serious pull.