Friday's Shanghai round of 64 pits Ben Shelton against Daniel Altmaier on hard. Ben Shelton is searching for form, having lost 3 in a row (6 of the last 10). Daniel Altmaier is 4-6 across recent matches.

Daniel Altmaier leads the head-to-head 1-0, and history has a way of mattering in matchups like this one.

Shelton's 74.2% behind the first serve (against 70.9% for Altmaier) means break chances should be scarce in one direction. Anything other than a Shelton win would rank among the bigger surprises of the week.