The Open 2022 live: score and latest updates from round two in St Andrews

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And it's Dustin Johnson who joins his fellow American. DJ has birdied the 16th to get to eight-under.

Back in 2015 he dominated the first two rounds before the wind blew and his challenge fell away over the weekend. He'll hope history doesn't repeat itself this time. 

The world No 4 is putting together a fine round - he's posted his fourth birdie in just seven holes to get to six-under. 

Some big names are now breathing down the neck of leader Cameron Young - who's been on top of the leaderboard for nearly 24 hours now...

He got booed again BUT this time he didn't nearly hook his tee shot into the town. Not only that but the Saudi rebel and social media star nails a 45-foot putt for birdie to move to four-under. 

He knows, likes and has done well on the Old Course before and he taps in for birdie at the par-five 14th to get to seven-under. 

Scheffler misses a short putt at the same hole and has to settle for par - he stays at seven-under. 

It's on the par-three eighth and it's a 25 footer that, as with several of his putts this morning, gave a good impression of a ball thinking about going in, but it stayed visible. 

He won't make the cut - barring an unlikely miracle - but can he offer glimpses of his past brilliance on the back nine? Let's hope so. 

He stays at seven-over.

And the world No 40 end his 18 on seven-under, thanks to a birdie at the last. That's opening rounds of 68, 69 and he's second at the moment. You suspect he won't be second come the end of the day but he's in a good spot. 

And the American is three-under for the first five holes to move to five-under.