Carnoustie - England's Tommy Fleetwood took a share of The Open lead on Friday after a superb second round on a wet morning in Carnoustie.
Fleetwood started the day one over par but shot a brilliant six-under-par 65 to go to five-under for the tournament at the halfway stage, level with overnight leader Kevin Kisner of the United States.
Fleetwood holds the course record at Carnoustie after shooting a 63 here last year, and Friday's effort is the best ever for the second round of a British Open on the notoriously tough Scottish links.
There was not a single bogey in Fleetwood's round, while the last of his six birdies came at the 18th.
Kisner, who shot 66 on Thursday, was not due to start his second round until 12:53 local time.
Zach Johnson, the Open champion in 2015 at St Andrews, was also five-under for the tournament after 15 holes of his second round.
The American began the day two-under only to bogey the first, but three birdies in four holes from the third and then another at the 14th lifted him right into contention.
Rory McIlroy was four-under overall heading to the 17th, with an erratic run on the back nine preventing the Northern Irishman from going top of the leaderboard.