Martin Dwyer will be out the rest of the season after sustaining an injury last month that requires surgery. The jockey, who won the 2006 G1 Derby aboard Sir Percy (GB) (Mark Of Esteem {Ire}), tore his ACL after a leather iron broke on the gallops riding out for Brian Meehan. Dwyer, who is stable jockey for trainers William Muir and Chris Grassick, will be having surgery in the next few weeks. "He is having plenty of physio down at Oaksey House [rehabilitation and fitness centre in Lambourn] before the...