It's going to be a Paddy/Tiger shootout on Sunday at the WGC-Bridgestone Invitational in Akron , Ohio, as two of the world's top golfers go head to head in the final pairing.
Harrington shot a three under par 67 on Saturday to take a three shot lead over a resurgent Woods, who jumped up the leader board with a third round 65.
Harrington had one birdie and one bogey on the front nine but had a strong back nine, with three birdies on holes 12, 13 and 15 sullied by a bogey at the par 5 16th.
However, the triple-major-winner from Dublin showed his steel by rebounding with a great birdie on 17 when he holed a 19.7-foot putt.
A par on the last saw the Irish star card a three under par 67 to stay three shots ahead of Woods.
Woods’ fine third round finish, which included four birdies in his last six holes, sets up a mouthwatering final round pairing, as Harrington is one of the few golfers to have held his own with Woods in Sunday play.
The two have played together in the final pairing twice and it is honors even between the duo.
Jerry Kelly is in third place on five under par.
Darren Clarke shot a level par 70 to go one over for tournament, while Graeme McDowell carded a 71, and is five over par for the tournament.
Rory McIlroy shot a 71 and is six over for the tournament, and Shane Lowry's third round 72 leaves him 18 over par for the tournament.