Phil Mickelson beats Justin Thomas in play-off to claim WGC-Mexico championship title

Five-time major winner Phil Mickelson defeated Justin Thomas in a play-off after an extraordinary climax to the WGC-Mexico Championship to claim his first victory since the 2013 Open.

Mickelson parred the first extra hole to become, at the age of 47, the oldest winner of a World Golf Championship event and secure the 43rd title of his career.