For Brooks Koepka, it is another 54-hole lead at another major this season as he carded 66 on the third day of the 2023 PGA Championship. He holds a single-stroke lead over Viktor Hovland and Corey Conners at Oak Hill Country Club.The conditions haven't been easy at this year's PGA Championship given only seven players are below par after three rounds of golf at Oak Hill. The tournament has witnessed rain, wind, and drastic temperature changes this week. Nevertheless, Koepka loves challenges like these."I'd like when it's difficult like today was super difficult," Koepka revealed in a post-round interview with CBS. "If it was hot for a minute, it was cold, and the wind, the rain. Pretty much had everything going today. So, difficult day, I'll take four under."It was a similar situation for Koepka at the Masters last month when he headed into the fourth round with a two-stroke lead. However, a few errors on the final day dashed his hopes of wearing the green jacket.The four-time Major Championship winner said after his runner-up finish at the Masters:"I didn't really sleep. I figured out the mistakes I made, and I won't make them again."The LIV Golf professional didn't go much into the details of the mistakes but said he would make sure not to repeat them this time.He said:"I know what I did, and I promise I won't show up like that tomorrow. I mean I won't have that thought process. It'll be completely different, and you know, see where see where it puts me. It was kind of kind of irritating.""I'll never do it again, but it's just one of those things where if you can do what I'm trying to set out to do, then it's just up to playing good, and I should be all right."NUCLR GOLF@NUCLRGOLF🗣️ PGA Championship leader Brooks Koepka says he’s learned from his failures at Augusta: “I know what I did, I promise I won’t do it again tomorrow… “It’s kind of irritating, I’ll never do it again.110350🚨🗣️ PGA Championship leader Brooks Koepka says he’s learned from his failures at Augusta: “I know what I did, I promise I won’t do it again tomorrow… “It’s kind of irritating, I’ll never do it again. https://t.co/ywdKV8jFusWhen will Brooks Koepka resume playing at the 2023 Championship?Brooks Koepka shot back-to-back 66 in the third round of the PGA Championship to take the solo lead at Oak Hill. He dug in five birdies and a single bogey on Saturday, aggregating at 6-under 54 holes. The former World No. 1 will tee off at 2:30 pm ET with Viktor Hovland.Hovland is tied for second place alongside Corey Conners at 5-under. Conners was shaping up for the lead after a birdie on the 15th, but he missed a bogey put on the 17th hole finishing the third round at 70.Here's the leaderboard for the 2023 PGA Championship after three rounds:1 Brooks Koepka: -6T2 Corey Conners: -5T2 Viktor Hovland: -54 Bryson DeChambeau: -3T5 Justin Rose: -2T5 Scottie Scheffler: -27 Rory McIlroy: -1T8 Michael Block: ET8 Justin Suh: ET10 Eric Cole: +1T10 Tommy Fleetwood: +1T10 Stephan Jaeger: +1T10 Min Woo Lee: +1T10 Shane Lowry: +1T10 Victor Perez: +1T16 Cam Davis: +2T16 Ryan Fox: +2T16 Kurt Kitayama: +2T16 Patrick Reed: +2T20 Patrick Cantlay: +3T20 Hideki Matsuyama: +3T20 Keith Mitchell: +3T20 Taylor Pendrith: +3T20 Sepp Straka: +3T20 Adam Svensson: +3T20 Sahith Theegala: +3