After an ace at Sedgefield’s third, Kim had a chance for another as predicted by Jim Nantz.
The next obvious question was answered by Brian Wacker at GolfDigest.com:
Only three other players on tour have ever made two aces in one round, with Brian Harman the last to do so at the 2015 Barclays. Kim, meanwhile, will have to instead settle for a two-shot lead as he tries to pick up his third career victory on Sunday.