USGA on Twitter: "There was no penalty for Tiger on Friday because it couldn't be determined with the “naked eye” that a double hit had occurred. Starting next year, an accidental double
Is there a penalty for double-hitting a putt? Rules Guy
FREE Copy of The Rules of Golf for 2019 Booklet from Haggin Oaks - Haggin Oaks
Tiger Woods says he double-hit golf shot but officials say no you're all good... | GolfMagic
Padraig Harrington admits embarrassing DOUBLE-HIT at Abu Dhabi HSBC Championship | GolfMagic
The Double Hit - My Golf Instructor
Tiger Woods avoids penalty for double-hitting a shot, but not controversy on Day 2 at Hero World Challenge | Golf News and Tour Information | Golf Digest
Rick Smith: Why'd I Do That? | Instruction | Golf Digest
Golf - Woods avoids penalty for double-hit | Euronews
2019 rules change: Ball in motion is deflected, double hit
Embarrassing Double-Hit Costs Pro The Lead | SwingU Clubhouse