Potential NFL players spend a lot of time leading up to the NFL Scouting Combine or their respective school's pro day working on things such as running the 40-yard dash.
But once they do it at the Combine, they often never do it again. At least not in a public setting.
JuJu Smith-Schuster got an opportunity to perform a 40-yard dash Tuesday at Tottenham Hotspur Stadium. And he liked the results.
He also answered the question about whether players can get faster after entering the NFL.
The Steelers' third-year receiver, who ran a 4.