He really should have won that set and been 2-0 up. WTF was that double fault all about though, that was a really really bad DF, all are bad but that was just woeful.
Coric (world number 20?) vs Medvedev (world number 36?) should be a good match. Both young upstarts trying to make a name.
They're both like 20/21/22ish.
Part of the young gun crew with Zverev, Shapo, and Tsitsipas.