Marcum Dealing With Shoulder Issue KISSIMMEE, Fla. - The spring training health concerns continued to pile up Wednesday for the Mets, as the team announced the right-hander Shaun Marcum had flown to New York to receive a cortisone shot Tuesday for a shoulder impingement. The team said Marcum, who was scheduled to make a start Thursday, would be rested the next few days. Shoulder impingement syndrome refers to an inflammation of the rotator cuff muscle tendons. Marcum, 31, signed a one-year deal this winter worth $4 million. He went 7-4 for the Milwaukee Brewers last season and was set to fill the rotation hole left by R.A. Dickey, who was traded. Marcum has a 4.66 earned run average in spring training after three starts. There were questions about Marcum's health when he signed; he missed a portion of last season with elbow soreness. He underwent Tommy John surgery in 2009. The fact that the injury occurred in his shoulder and not his elbow seems fortunate for the Mets. Still, it was not welcome news for the team, which already seems set to begin the season without its top starter, Johan Santana.