Daniel Vallejo and Pablo Carreno Busta meet in the round of 64 at Winston-Salem on Sunday. Pablo Carreno Busta comes in at 4 wins from the last ten. Daniel Vallejo has won 6 of the last 10.
Busta's 68.2% behind the first serve (against 64.9% for Vallejo) means break chances should be scarce in one direction. Little separates them; Busta gets the nod on the finest of margins.