Nationals second baseman Danny Espinosa played through a torn rotator cuff in his left shoulder during the final weeks of last season, he revealed to reporters on Saturday at the team's fan festival at Walter E. Washington Convention Center. He said if he had known about the extent of the injury, he likely would not have attempted to play through the pain on the team's playoff run. Espinosa, who managed just one hit in 15 at-bats in the Nationals League Division Series against St. Louis, said he initially had a bruised non-throwing shoulder diagnosed after undergoing an MRI procedure in September and sought a second opinion shortly after the season from Lewis Yocum, the surgeon who previously performed Stephen Strasburg's Tommy John elbow surgery. The player said Yocum diagnosed the tear after using contrast dye in a second MRI.