The Red Sox have received good reports about Carl Crawford as he takes part in extended spring training. The left fielder, on the disabled list while recovering from surgery on his left wrist, was 1-for-3 with a walk Saturday in a game at Fort Myers, Fla. Crawford will return to Boston this week to have his strained left elbow checked. If cleared, he could start a throwing program. "Right now he needs to see pitches, get at-bats, get on base, steal those bases, and start getting comfortable playing the game," Bobby Valentine said. "Not sure we're worried about the competition level. We're worried about his comfort."