SHARE

Lefty and the Ulsterman both had fine days at a new track in the first WGC event of 2017<p>After sitting out since January with a stress fracture in one of his ribs, Rory McIlroy stepped to the 10th tee at the WGC-Mexico Championship, his first hole of the day. He waggled his Callaway Epic driver a …

Read more at CBS Sports: http://www.cbssports.com/golf/news/phil-mickelson-rory-mcilroy-contending-at-wgc-mexico-championship-after-round-1/