Roberto Bautista Agut, Pablo Carreño Busta and Feliciano Lopez among players set to compete.
NCAA champion is newest ellesse ambassador.
Alexander Zverev is working with David Ferrer on a 15-day trial basis.
The Aussie is on the Twitter attack once again.
The World No.103 says he's not comfortable travelling to New York this year.
Former world No. 5 says there three good reasons to cancel the US Open.
Grand Slam king says patience is key to comeback from knee surgery.
