Aslan Karatsev became the first man in the professional era to reach the semifinals of his first major tennis tournament by beating 18th-seeded Grigor Dimitrov 2-6, 6-4, 6-1, 6-2 on Tuesday.
https://www.espn.com/tennis/story/_/id/30913763/who-aslan-karatsev-cinderella-story-australian-open

