Scottie Scheffler used at least some of his time in jail on Friday to prep for the PGA Championship ... admitting he actually got some stretching in while he was locked up.
The 27-year-old just addressed his arrest following the conclusion of his second round at Valhalla Golf Club in Louisville, Ky. ... and he was frank with the gaggle of reporters who had gathered to talk about his early-morning run-in with cops.
He said repeatedly he was very confused as to what was going on during the encounter ... and he said, candidly, it all really rattled him.