Game chat: Polanco out again in South Florida

Juan Castro, and not Greg Dobbs, will start at third against a right-hander. Preview: Placido Polanco continues to battle soreness in his left elbow joint stemming from an April 21 plunking at the hands of the Braves. Polly, who reportedly had an MRI today, according to Ryan Lawrence of the Delco Times, sits for a second-straight game tonight as right-handed aces Roy Halladay (2-2, 2.22) and Josh Johnson (5-1, 2.43) square off in the second of three from Sun Life...