Look at that sky! I'm sure Diane hasn't enhanced it with an Instagram filter.

It is almost as bright as Rory McIlroy's final day outfit. A bright yellowy-orange top - like a classic Netherlands top that has faded in the wash - with the same coloured trim on his golf shoes.

Diane Knox
BBC Radio 5 live reporter

What a day! All the action from the final day of The Open is ion BBC Radio 5 live.

Will Jordan run away with it?

You can listen live by clicking the tab at the top of this page.

Most of the final day pairings are already out on the course, with just the main men still to walk out onto that first tee.

We've already seen a couple of low scores in the Birkdale sunshine - Australian Aaron Baddeley carding a day-best 64 - which will give plenty of encouragement to the leaders.

Hello! And welcome to the fourth and final day of the 2017 Open Championship. Eighteen holes separate Jordan Spieth and the Claret Jug.

Is it going to be a procession to the trophy for the young American? Or can compatriot Matt Kuchar - at the opposite end of the golfing age scale - throw a spanner in the works?

Or is there anyone going to make a charge from pack lagging behind to make sure this final day is not a two-horse race?

Image source, Getty Images

History tells us Jordan Spieth is a remarkable young golfer. It tells us he has got the game and the mind to win golf's biggest titles.

But it also tells us something else. That Spieth has the capacity to buckle when in pole position at a major...

Image source, Getty Images

Image source, PA

A certainty. Nailed on. His tournament to lose. A one-way ticket to Trophy Town.

Jordan Spieth has heard it all before. And he is hearing it all again today...