|WGC Mexico Championship, final leaderboard:|
|-14 D Johnson (US) -13 T Fleetwood (Eng) P Mickelson (US); -12 R Fisher (Eng), J Rahm (Spa); -11 T Pieters (Bel),J Thomas (US); -10 B Snedeker (US), P Mickelson (US), R McIlroy (NI)|
|Selected others: -9 T Hatton (Eng); -7 S Garcia (Spa), J Spieth (US); -6 P Casey (Eng), M Fitzpatrick (Eng); -5 A Sullivan (Eng); -2 L Westwood (Eng)|
|Full leaderboard (external site)|
American Dustin Johnson held off a strong European challenge to win his first tournament as world number one at the World Golf Championships in Mexico.
Johnson, 32, closed with a round of 68 to finish 14 under par, one shot clear of England's Tommy Fleetwood (66).
Another Englishman, Ross Fisher (65), was tied for third on 12 under with Spanish rookie Jon Rahm (68).
Northern Ireland's Rory McIlroy, the halfway leader, did not threaten as he ended with a level-par 71 for 10 under.
Johnson moved to the top of the rankings last month and becomes only the fifth player after Ian Woosnam, David Duval, Vijay Singh and Adam Scott to win his first tournament since becoming number one.
"It means a lot, it's a tough spot to be in," said Johnson. "There a lot of pressure on you. I played just well enough I guess, because I won by one."
More to follow.