Dobson back in four weeks Hull KR have had better news than they feared over the shoulder injury suffered by their playmaker Michael Dobson in the victory at Wakefield on Sunday. Dobson came off during the game with what was thought to be a broken collarbone, but scans yesterday showed that he had escaped without a fracture. He could be back in action in four weeks. Rovers are already without his half-back partner Blake Green, who has a blood clot in a leg, as well as captain Ben Galea. The Manly coach, Geoff Toovey, is expected to name a full-strength side today for the World Club Challenge against Leeds on Friday.