Jockey Sheldon Russell, injured in a spill on the Pimlico turf course on April 25, was released from Sinai Hospital on Monday and is resting at home. Russell fractured several ribs and a punctured lung when he was thrown from his mount, Political Farce. He underwent surgery last Thursday to repair his lung and will likely be out until at least the start of the Laurel meet in August, said Russell’s agent, Marty Leonard. “Sheldon will take as much times as he needs,” Leonard said.