Very impressive win - no bother at all - last set could easily have been 6-0 (he had a MP).
Not so sure Jack will come through. 1 set down from 2 BPs up to serve for the first set. Hmmn. Hope he wins from here.
Jack is never going to blast an opponent off court. He doesn't have the game to do that and consequently he will have a lot of long matches. He is always going to have to work had for his victories and slog his way through.
He has managed a break, though, in the 1st game of the 2nd set.