Alexander Zverev and Tommy Paul meet in the round of 16 at Cincinnati on Wednesday. Alexander Zverev has won 7 of the last 10. Tommy Paul comes in at 6 wins from the last ten.
The serve is where this match separates: Zverev has been winning 73.3% of first-serve points to Paul's 69.4%, and on hard that gap compounds fast. Expect resistance, but the match-level math tilts clearly toward Zverev.