McIlroy and McDowell four off the lead

Rory McIlroy and Graeme McDowell are four shots off the lead going into the final round of golf's Arnold Palmer Invitational in Florida.

The pair from Northern Ireland will need to chase down Billy Horschel and Talor Gooch - with the American duo level at the top of the leaderboard.

They lead on 7-under-par for the weekend.