Rory McIlroy, playing for the first time since winning the Masters, teamed with Shane Lowry to shoot an 8-under 64 in better-play Thursday in the Zurich Classic, leaving the Irish defending champions six shots behind leaders Isaiah Salinda and Kevin Vetlo.

International players have won six of the seven tournaments on the PGA Tour this year.

Harris English held off hard-charging Sam Stevens to win the Farmers Insurance Open by one shot Saturday, securing his fifth career PGA Tour victory with a 1-over 73 in challenging weather at Torrey Pines.