When the sporting reviews get written for 2018 three great comeback stories will feature prominently.
Novak Djokovic winning grand slams for the first time in years, Tiger Woods owning golf like he once always did and Usain Bolt reinventing himself as a top-flight professional footballer.
At least two of those seem certain anyway with Tiger's story by far the most spectacular.
Before his Tour Championship victory last weekend there seemed more chance of Usain being signed to partner Messi at Barcelona than Tiger ever regaining his past golfing greatness.
But his tap-in on 18 brought back that beaming smile we hadn't seen since, well, who can honestly remember. He certainly didn't look like a guy who'd just had a fortune in FedEx Cup prizemoney snatched from under his own sand wedge.