Michael Brennan DQ'd after first round at Farmers

(Photo credit: Corey Perrine/Florida Times-Union / USA TODAY NETWORK via Imagn Images)

Michael Brennan was disqualified following Thursday's opening round at the Farmers Insurance Open for using non-permitted green-reading materials.

Brennan posted a 2-under-par 70 on the North Course at Torrey Pines in La Jolla, Calif., registering four birdies and two bogeys.

Brennan broke Model Local Rule G-11, whi