Graeme McDowell's Accenture WGC Match Play journey is over for this year after Jason Day's 1up victory in the quarter-final.
It was a scrappy encounter where neither player displayed their best golf. Day will now meet Matt Kuchar in the semi-final.
In the other semi, Hunter Mahan will face Ian Poulter
Graeme McDowell v Jason Day
Robert Garrigus v Matt Kuchar
Steve Stricker v Ian Poulter
Webb Simpson v Hunter Mahan