Scottie Scheffler is unsure whether his arrest on Friday was a factor after a disappointing Saturday led to him finishing tied for eighth at a "hectic" PGA Championship.

On Friday, world number one Scheffler was arrested outside Valhalla Golf Club ahead of his second round.

It subsequently emerged that he faces charges of second-degree assault of a police officer, third-degree criminal mischief, reckless driving, and disregarding traffic signals from an officer directing traffic.

Scheffler shot a five-under 66 in the delayed second round, one stroke better than his first round, but a two-over 73 on Saturday all but ended his hopes of back-to-back major wins.

Xander Schauffele ultimately claimed his first major title at 21 under, eight shots ahead of Scheffler.

Speaking after Sunday's final round, in which a run of seven birdies in 10 holes helped him card a 65, Scheffler said he was proud of the way he finished the event.

"I think 'hectic' would probably be a good description," Scheffler said. "I'm fairly tired, definitely a lot more tired than I have been finishing some other tournaments.

"I'm proud of today how we went out there and fought. I got off to a slow start and I was able to get some momentum and post a good round.

"Yesterday obviously was quite frustrating and a bit of a different day, but overall proud of how I fought this week. Was fortunate to be out here competing, doing what I love."

Asked whether his arrest had an impact on his performance, Scheffler said: "It's hard to tell. I think I would attribute it mostly to a bad day.

"I think when you come out here to compete, you're doing what you can throughout the course of the round to post a score and I wasn't able to get that done yesterday.

"Did I feel like myself? Absolutely not. Was my warm-up the way it usually is and the distractions the way they normally are? Absolutely not.

"I got arrested Friday morning and I showed up here and played a good round of golf. So I've been good throughout my career at leaving the off-course distractions at home and keeping a pretty quiet personal life.

"I'm not going to sit here and say that I played poorly yesterday because of what happened on Friday. I just had a bad day out on the course and was proud of how I came out here and bounced back today."