LAS VEGAS – A training injury has forced Tarec Saffiedine  (15-3 MMA, 1-1 UFC) to bow out of next month’s UFC 172 event in Baltimore. With his intended opponent scrapped, J ake Ellenberger (29-7 MMA, 8-3 UFC) will now shift to May’s UFC 173 fight card, where he’ll meet fellow welterweight Robbie Lawler  (22-10, 7-4).