Denis Shapovalov and Vit Kopriva meet in the round of 16 at Chengdu on Friday. Denis Shapovalov has won 7 of the last 10. Vit Kopriva has won 3 of the last 10.

The serve is where this match separates: Shapovalov has been winning 74.7% of first-serve points to Kopriva's 66.5%, and on hard that gap compounds fast. Shapovalov comes in off a compressed schedule. The edge belongs to Shapovalov — real, but not the kind you take for granted at this level.