World number one golfer Scottie Scheffler has revealed he spent time in his jail cell warming up under the hope he would still be able to play the second round at the PGA Championship.

In dramatic events on the morning of Round 2, Scheffler, arriving at the course, was arrested by officers after he failed to follow directions.

It's understood he had driven on curbing in an attempt to get around an accident at the entrance to the golf course which had earlier resulted in a fatality of a pedestrian, completely unrellated to Scheffler's arrival.

The world's best golfer - who had a solid first day at the Championship which this year is being held at the Val Halla Golf Course in Louisville - was charged with a felony assault of a police officer, criminal mischief, reckless driving and disregarding signals from an officer directing traffic.

It looked at one stage as if Scheffler would be unable to play Round 2 of the tournament, but he was released from jail on time and made his way back to the course for his tee time where he proceeded to shoot a five under par 66.

Speaking to reporters after the tour, he said his head was spinning from the day's events.

“I feel like my head is still spinning,” the world number one said.

“I can't really explain what happened this morning. I did spend some time stretching in a jail cell. That was a first for me. That was part of my warmup.

“I was just sitting there waiting and I started going through my warmup, I felt like there was a chance I may be able to still come out here and play.

“I started going through my routine and I tried to get my heart rate down as much as I could today, but like I said, I still feel like my head is spinning a little bit.”

Scheffler - who asked a reporter watching the arrest to "help him" admitted he was "shaking for an hour" after being taken away.

Xander Schauffele - who shot a course record 62 on Day 1 - holds the overall lead at 12 under par, one shot ahead of Colin Morikawa. Sahith Theegala is another shot back, with Thomas Detry, Bryson De Chambeau, Scheffler and Mark Hubbard all tied for fourth at nine shots under the card following two rounds.