Thursday's US Open round of 64 pits Felix Auger Aliassime against Karen Khachanov on hard. Felix Auger Aliassime has won 7 of the last 10. Karen Khachanov comes in at 4 wins from the last ten.

Aliassime's 75.5% behind the first serve (against 72% for Khachanov) means break chances should be scarce in one direction. The edge belongs to Aliassime — real, but not the kind you take for granted at this level.