At 27, he sort of came out of nowhere. He is a Russian citizen of mixed heritage who lived in Israel for a while as one parent had Jewish forebears. It began to come together for him when he played doubles on a Russian tennis team in a tournament just predating the Australian Open.
At the Australian open he blistered through the draw ultimately beaten by Djokovic in the semis. That was followed by winning Dubai today having beaten Rublev in the semis.
He is built a lot like Federer but has a powerful two handed backhand, powerful forehand, skill at the net and a solid serve. Look out tennis world. This man is the real deal. Impressively, he is handling the pressure better and better. Go Aslan!