Phil Mickelson and Sergio Garcia were two behind.
As for reigning champ Dustin Johnson, he will need a strong finish to capture his third title at the event.
LPGA - Florida teenager Nelly Korda shot a third-round 7-under 65 to take a one-stroke lead at the LPGA Tour's Women's World Championship after Danielle Kang made her first bogeys of the tournament to slip back into second place in Singapore.
For the third day in a row, the 21-year-old golfing prodigy from India drove the green with a three-wood on the 319-yard par-four.
The Club de Golf Chapultepec features a drivable par 4 to start, but the par-4 second, although not long by today's standards, was not created to be reached in one shot. He closed with a tremendous par save at the par-four 18th, calmly rolling in a 15-foot putt for a 13-under total of 200.
Nor'easter pounds the Atlantic coast
Officials feared the high tide before midnight on Friday could set an all-time record, but it wasn't quite as bad as predicted. The nor'easter's reach extended from ME to North Carolina, where the state's Outer Banks received storm and flood warnings.
That left him 18 holes away from capping off his wonderful rise.
Despite two European Tour victories already this season ― in South Africa and Malaysia ― it is fair to say a Sharma victory on Sunday would reverberate around the golf world.
Mickelson, 47, who has not tasted victory since the 2013 Open at Muirfield, also did not drop a shot in his 65, while the Spanish pair of Garcia and Cabrera Bello both shot 69.
Defending champion and world number one Dustin Johnson of the United States is part of a group of four players who are a further three shots behind Sharma on 10-under.
Tommy Fleetwood leads the European Tour's Race to Dubai, right?
'M*A*S*H' actor David Ogden Stiers dies aged 75
Stiers' resonant voice actually earned him his first on-screen credit as the announcer in George Lucas' dystopian film THX 1138 . Legendary MASH star and Cogsworth voice actor David Ogden Stiers has lost his battle with bladder cancer and died aged 75.
"You're always very happy when you start with such a low round, especially for me".
The best position for an Indian at a WGC was Tied-1st for Jeev Milkha Singh after the first round at WGC at Doral in 2009 and at the same event, Jeev was T-9 after second round, T-3 after three rounds and eventually finished T-4, the best-ever for an Indian.
"It's been a long time since my game has been back to this point and I'm back playing some of my best golf again and it will start to click and get better and better as the year goes on", he added. I wasn't really putting very well so I finally saw some positives today that I can move forward on. "Just a great day and got up-and-down when I needed to and climbed the leaderboard". Rather, he was inspired by staying up all night to watch Rory McIlroy win the 2011 US Open.
Hatton had been suffering from a bout of food poisoning earlier in the week but the world number 16 showed no ill effects as he raced to the turn in 30, chipped in for a birdie on the 12th and nearly repeated the trick for an eagle on the 15th.
US Intelligence: North Korea Continues to Make Progress on Missile Program
After the visit to North Korea the envoys will travel to the United States to brief officials, and Seoul said it would also coordinate closely with officials in Japan and China.