Things are heating up at the WGC-Mexico Championship
Dustin Johnson is on top of leaderboard at the halfway stage of the tournament.
The American is a couple of shots ahead of two-time Omega Dubai Desert Classic winner Rory McIlroy and Matt Kuchar.
Meanwhile Sergio Garcia and 2017 Race to Dubai champion Tommy Fleetwood are four shots behind Johnson.

Patrick Reed wins Hero Dubai Desert Classic
Tien upsets Medvedev again at Australian Open
Gauff survives roller-coaster ride against Muchova
Alcaraz cruises into Australian Open quarters
England's Brook slams 'worst' Colombo pitch despite victory
