An overpowering roar from nearly 45,000 New York Mets fans carried Matt Harvey out to the Citi Field mound to start the ninth inning of Game 5 of the 2015 World Series.
Harvey had talked his way into pitching. Facing elimination, he was going to complete his 2-0 shutout and send the series back to Kansas City.
But what has happened since then is a bit of a puzzle, and it's one the Mets and Harvey have not been able to solve. Harvey didn't have his best fastball in the ninth inning of that eventual defeat, and he hasn't had his best fastball since then.