Shubhankar Sharma
Shubhankar Sharma

Mexico City: Shubhankar Sharma continued his sensational run of form at the WGC-Mexico Championship to retain a two-stroke lead after the third round on Saturday, but the Indian is still not ready to contemplate the possibility of winning.

Playing in his maiden PGA Tour event and first World Golf Championships tournament, Sharma remains the man to beat after a two-under-par 69 at Club de Golf Chapultepec in Mexico City.

But if he showed a few nerves with some loose shots down the stretch on Saturday, that will be nothing compared to what he is likely to experience on Sunday when he attempts to pull off one of the greatest upsets in recent golf history.

Sharma, the 21-year-old Asian Tour Order of Merit leader whose European Tour wins this season at Johannesburg and the Maybank  Championship have propelled him to number 75 in the world, is making his first start in an elite World Golf Championships event.

"I don't really want to think about it," Sharma said after posting a 13-under 200 total for the tournament. He's vying to break into the top 50 in time to earn a Masters berth. With a win on Sunday, he would become the youngest player to win a WGC event, eclipsing the mark of Patrick Reed who won the 2014 WGC Mexico Championship at 23 years old.

"That would put too much pressure on me.I just want to go ahead and enjoy myself. Tomorrow will be a lot of fun with a lot of good players in the mix." A highly-credentialled group of four players are sure be breathing down his neck in the final round with American Phil Mickelson (65), Spaniards Sergio Garcia (69) and Rafa Cabrera Bello (69) and Briton Tyrrell Hatton (64) all on 11-under.

Mickelson, who has not won since the 2013 British Open, will be paired with Sharma in the final round. Defending champion Dustin Johnson (68) is also in contention, three strokes behind, while Justin Thomas trails by four after surging into contention with a 62, the day's best score.