Injury roundup: Mo, Joba, Gardy

Still no surgery date for Mariano Rivera, which is not unusual with knee injuries, bcause surgeons prefer for the swelling to subside before they go in. Brett Gardner, suffering from a right elbow strain, is still five days or so from swinging a bat again. And according to Joe Girardi, Joba Chamberlain is "just playing catch,'' but looking good doing it in the video tapes the manager has seen.