Jason Dufner is leading the field as the PGA Championship enters its third day of play – but it’s how he’s leading it that is the most newsworthy. Yesterday, he tied the record for the lowest championship round, scoring a 63, something only some two dozen players have accomplished in championship play. And he came with a foot, on a short putt, of finishing with a 62, which would have given him an unprecedented 62. Yet today, as the action begins, he’s only two shots ahead. Right behind him: Adam Scott, Jim Furyk and Matt Kuchar. TNT covers the morning action, and CBS takes over at 1 p.m. ET.