Mar 24, 2017; Austin, TX, USA; Dustin Johnson of the United States plays against Jimmy Walker of the United States during the third round of the World Golf Classic - Dell Match Play golf tournament at Austin Country Club. Erich Schlegel-USA TODAY Sports
(Reuters) - It will be Johnson v Johnson as world number one Dustin takes on double major champion Zach in a round-of-16 clash at the WGC-Dell Match Play in Texas on Saturday.
And five-times major champion Phil Mickelson will meet in-form Australian Marc Leishman as the World Golf Championships event enters the knockout phase after completing the round-robin phase at Austin Country Club.
