Rory, Tiger get master classes with Augusta ace

Record holder shows stars the way around legendary course

Top-ranked Rory McIlroy and 14-time major winner Tiger Woods, each seeking a milestone Masters victory next Sunday, appear to have a key adviser in common - Augusta National ace Jeff Knox.

Should either golf superstar capture the green jacket next weekend, McIlroy to complete a career Grand Slam and win his third major in a row or Woods for a fifth time to end a seven-year major win drought, he might just owe some thanks to 51-year-old Knox, who set the Augusta National members course record of 61 in 2003.