I really enjoy his big-hitting style. In a way he makes me think of Raonic in his absolute best. Sinner with a way better volley would be a treat to watch.I've seen Sinner a few times in the last few weeks. His level in his win over Monfils a few weeks ago (Antwerp iirc) was a great level from him. I'll say he breaks top 20 in 2020.