By Mark Gleeson BLOEMFONTEIN, Feb 23 (Reuters) - The Sharks held off a late fightback from the Cheetahs to record a thrilling 29-22 victory in their Super Rugby encounter at the Free State Stadium on Saturday. The visitors appeared to be in control of the game midway through the second half but two tries brought the Cheetahs back into the contest and, although they could not force the win, they did manage a losing bonus point.