I think Draper is probably most likely. He's come a long way already and seems really committed to the game. His serve and top spin forehand is a great combo. I still think Zverev can eventually breakthrough at some point on any surface but grass. He has a game that can match up against the big 2. If Shelton keeps improving I'd give him a chance after 2 above just because of his weapons. After those 3 anyone else is few years away or would be pretty big shocker and need draw to open up.It'll be interesting to see if anyone else emerges as a contender. I can't see the rest of the world accepting Sinner and Alcaraz winning all the grand slams the next 10 years. Who's everyone's pick to be the next winner outside of those two? Fils, Mensik and Fonseca appear to be the best young talent. My pick is Jack Draper. He's come a long way in the last 12 months and is a lot closer than those other guys right now.