A spot in the next round is at stake on Sunday, when Alexander Zverev goes up against Cameron Norrie in the Cincinnati round of 64. Alexander Zverev is searching for form, having lost 2 in a row (7 of the last 10). Cameron Norrie is 7-3 across recent matches.

The serve is where this match separates: Zverev has been winning 73.3% of first-serve points to Norrie's 68.4%, and on hard that gap compounds fast. The edge belongs to Zverev — real, but not the kind you take for granted at this level.