Postpublished at 18:26 British Summer Time 16 July 2022
McIlroy -15, Hovland -15 (11)
The leaders are laughing away with each other as they wait on the 12th tee.
Imagine being that relaxed in this sort of situation.
Leaders -16 McIlroy (66), Hovland (66)
Selected: -12 Young (71), Smith (73); -11 Kim (67), Scheffler (69); -10 D Johnson (71)
-9 Fitzpatrick (69), Fleetwood (66); -8 Spieth (68); -7 Hatton (73), Kisner (65)
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Jonathan Jurejko, Paul Higham and Matt Gault
McIlroy -15, Hovland -15 (11)
The leaders are laughing away with each other as they wait on the 12th tee.
Imagine being that relaxed in this sort of situation.
This super group of Rory McIlroy and Viktor Hovland is the headline act at St Andrews today, and my word are they delivering...
Hovland is in here somewhere, if you find him let us know!
Smith -13, Young -13 (10)
Now then! Cameron Young is just starting to put some red on the board.
After a birdie on nine, he drops another putt on 10.
His ball almost bashfully tries to enter the promised land, eventually getting the nod and sneaking in the side door.
McIlroy, Hovland -15 (11)
Lydia Hall
Ladies European Tour winner on BBC Radio 5 Live
The key to today and tomorrow is for McIlroy to take every shot as it comes and keep focus.
Fitzpatrick -9 (14)
Matt Fitzpatrick isn't going away, you know. He may have taken his time to get going this afternoon, but he's just made his fourth birdie in the space of six holes to nudge himself up the leaderboard.
The US Open champ will probably need another two or three before the leaders start looking nervously over their shoulders.
What a place St Andrews is to come and watch golf - it's just a glorious piece of land and a glorious piece of history.
A must for every golf fan to visit this place, whether The Open is there or not.
McIlroy -15, Hovland -15 (11)
Hovland strokes his par putt home with minimal fuss.
This is a big putt for McIlroy. Makes it! That's a great up-and-down after a poor approach by his lofty standards.
Smith -13, Young -12 (9)
Just when Cameron Smith hopes to get things going on Moving Day, the 10th pin position poses more of a problem than a weak cardboard box.
With a flag on a slope at the front of the green, it's difficult to get the ball anywhere near.
Nevertheless, Smith's birdie putt is good and just bristles past the right lip.
Shades of Augusta earlier this year with a McIlroy bunker shot that found the bottom of the cup.
Which one was more impressive?
Thumbs up for Augusta, down for St Andrews.
McIlroy -15, Hovland -15 (10)
McIlroy takes the aerial route for his chip at the 11th and leaves himself around eight feet for par. Good shot, but an important putt coming up.
Hovland holed two tramliners on the front nine and he's eyeing this 63-footer one up, but this one's nowhere near.
Nervy times for the leaders.
Phew! All the fun of the golfing fayre, there. Swings and roundabouts on the leaderboard leaves things looking like this...
-15 Viktor Hovland (10), Rory McIlroy (10)
-13 Cameron Smith (9)
-12 Scottie Scheffler (11), Dustin Johnson (11), Cameron Young (9)
-10 Patrick Cantlay (12)
McIlroy -15, Hovland -15 (10)
The leaders have reached the par-three 11th. Nice touch from Hovland, by the way, giving McIroy a pat on the shoulder in acknowledgement of the world number two's bunker magic.
McIlroy to go first. Hmmm, it's not one of his better ones, losing it right and he will face a tough task to save par.
Hovland can't quite keep the pressure up and he'll have a lengthy putt from the back of the green.
A lot of people missed that Rory McIlroy eagle because they were still trying to get in the stand that overlooks the 10th green and 11th tee, and just about every other thing that goes on between the 7th and 11th greens.
A popular spot. Hopefully they've all got their eyes on the BBC Sport app...
#bbcgolf
Georgie Heath: There are few sights in golf more exhilarating than seeing Rory on the charge.
Cantlay -10 (12)
While those around him climb ladders, Patrick Cantlay hits a snake.
The American misses a short par putt on the 12th and slithers a block down the leaderboard.
Johnson -12, Scheffler -12 (11)
Scottie Scheffler moves up ominously to 12 under after successive birdies - and although McIlroy and Hovland are making the headlines, they need to keep an eye on the world number one who knows exactly how to get the job done.
Peter Scrivener
BBC Sport at St Andrews
The roar in the media tent to greet that McIlroy eagle on the 10th was almost as loud as that out on the course. Clear to see who those writing the stories want to win this week!
Smith -13, Young -12 (9)
At the same time as McIlroy was creating pandemonium, Cameron Smith was about 150 yards away trying to putt out for an eagle on the ninth green.
The noise didn't disturb him too much, mind. Sticking that close enables the overnight leader to knock in a birdie - his first of the day and back to where he started.
Difference now is he's third on the leaderboard.
From a similar position, Cameron Young also two-putts and moves to 12 under.
Alex Bysouth
BBC Sport at St Andrews
Tyrrell Hatton is still looking pretty agitated - he dropped his putter on the 11th. I don’t think it was on purpose, not quite a slam into the turf, more a swivel of the smooth stick that got away from him. And that was before he bogeyed…
Johnson -12, Scheffler -11 (10)
Moments after McIlroy holes out from the bunker on 10, just next door Scottie Scheffler has fired a ripper into the par-three 11th and almost gone and holed the thing from 163 yards!
It looks like a certain birdie coming up.