The 2018 edition of the U.S. Open is gonna be a doozy!
Here is Novak Djokovic and Alexander Zverev having a super intense hit. This is really good preparation for the both of them as they’re both heavy hitters. Djokovic is the betting favourite going into the tournament and he’s looking mighty sharp in this practice.
https://www.youtube.com/watch?v=lIi6pApVJJs
