Colin Montgomerie took the fight to Tiger Woods with a six-under-par 66 in round two of the Open at St Andrews.
The Scot had an eventful day on the Old Course, carding an eagle, seven birdies and three bogeys which left him seven under and four behind Tiger Woods.
Simon Khan finished on five under while Luke Donald, Simon Dyson and Sandy Lyle all finished on three under.
Ian Poulter, Nick Faldo and Darren Clarke all survived the cut but Lee Westwood and Ian Woosnam missed it.
Montgomerie played the first 10 holes in five under after an eagle at the fifth, before bogeys at the 12th and 13th checked his momentum.
But he followed that with birdies at the next two holes, and picked up another shot with a 10ft putt at the last.
His finish sets up a mouth-watering head-to-head with Woods on Saturday as the two will tee-off together.
"I'm not going to say it will be fun," he said. "Everybody who says that playing with Tiger goes and shoots 80.
"This is not fun - it's a major and business. Very much business. If Tiger does stumble at all - a couple under for him - that gives us a chance.
"I'm just the leader of a strong pack and one of us is going to shoot low."
"But if he plays well I'd have to go along with those who think we're playing for second. He has a four-stroke cushion.
"I look forward to it - the crowd, the whole atmosphere. I'll enjoy watching him and the fact that the crowd are very much behind me here.
"If I putt as well as I did in the second round I have a chance. I'm pretty relaxed now."
Donald could not repeat his first-round 68 as he shot a one-over 73, with fellow Englishman Dyson and Scot Lyle joining him on three under after rounds of 71 and 67 respectively.
Donald joined playing partner Jack Nicklaus to pose for photos on the Swilcan Burn as the American legend finished his last Open campaign.
Fellow Englishman Poulter enjoyed an inspired finish to his round to go two under and secure his place in the field this weekend.
He was in severe danger of missing the cut after four bogeys on the outward nine left him two over.
But he birdied the last four holes, positioning his approaches superbly.
He pitched to five feet at the 15th and went even closer at the next, before sinking an eight-footer at the 17th and holing out from six feet at the last.
Faldo, Britain's last Open winner at St Andrews, moved to one under after a bogey-free round of 69.
The six-time major winner claimed a record from Nicklaus after posting his 34th sub-70 round in the Open.
Faldo had begun the second day in a precarious position at two over, after four bogeys in his opening round.
Clarke endured a mixed second round.
The Northern Ireland star holed five birdies but also picked up three bogeys for a round of 70, leaving him on one under for the tournament.