Brendan Steele has retained his lead at the Frys.com Open in Napa after shooting a third-round 69 to take a one-stroke advantage into the final day.

Steele, who has led all the way, fired four birdies in total as he sits on 14-under-par for the tournament, one shot ahead of Kevin Na and Andrew Loupe.

Loupe carded 63 on Saturday to propel himself into contention. Former US Open champion Justin Rose is also in the running, with the Englishman one of eight players on 12-under.

World number three Rory McIlroy, meanwhile, shot a second successive 71 to leave himself eight strokes off the pace.

Steele's only previous PGA Tour title came in 2011.