John Rocker was sent down to the minors on Monday. But team officials are wondering: Will the controversial southpaw report? Rocker, called a “cancer” by a teammate, was demoted to the minors after a poor start to his season — and a run-in with the reporter who wrote the article that got him suspended him last year. The team said it was a matter of his pitching, which has been inconsistent and wild in recent weeks.