Louis Oosthuizen and Jordan Spieth will each continue their bids for a second Open Championship title amid fierce pressure at Royal St George's on Saturday.

The Kent links was once again bathed in sunshine as the 149th edition of golf's oldest major returned for the third round in Sandwich.

Firmer greens and tougher pin positions made life a little harder but the course still seemed nicely set up for low scoring, with Oosthuizen's 129 the lowest overall tally at the halfway stage of an Open.

The South African slept on a two-shot lead over Collin Morikawa and the 2010 Open champion will tee off alongside the 2020 US PGA Championship winner at 15:55 local time. 

Oosthuizen has been remarkably consistent in majors since his Open triumph 11 years ago, finishing as runner-up an incredible six times.

Spieth, who claimed the Claret Jug in 2017 and is eight under, goes out with Oosthuizen's compatriot Dylan Frittelli in the penultimate group.

Rory McIlroy looked to be making a charge when he made the turn in 31, but three bogeys on the back nine meant he signed for a 69 and well out of the picture.

World number one Dustin Johnson will get a couple of holes in before the leader gets his third round up and running, with the American starting four shots back.

With pre-tournament favourite Jon Rahm moving to five under overall through three holes, the Spaniard is still in the mix, but reigning champion Shane Lowry's bogey at the fourth left him adrift.