Matt Slocum/Associated Press
MLB Commissioner Rob Manfred said the Houston Astros batters didn't use wearable devices such as buzzers as part of the team's larger sign-stealing scheme, but New York Yankees closer Aroldis Chapman appears unconvinced.
As he rounded third base and approached home plate following his walk-off home run in the American League Championship Series, Astros star Jose Altuve gestured to his teammates not to rip off his jersey in the celebration.
Chapman commented on the matter.
"I've seen that video—a lot of people have seen that video; it's a popular video right now," he said, per ESPN's Buster Olney.