The New York Yankees told second baseman Robinson Cano to stop playing winter ball, his Dominican Republic team told on Thursday. "The Yankees sent a letter to Cano to stop playing, but they didn't offer many details or reasons," said Alfredo Griffin, the Estrellas Orientales' General Manager. Cano told Estrellas teammates, however, that the Yankees didn't want him to aggravate a calf injury that is still healing. The Dominican winter league baseball tournament began its round-robin playoff series Wednesday. Cano hit .389 in nine games during the regular season. He was hitless in his first postseason game Wednesday.