Tuesday's Cali round of 32 pits Alex Hernandez against Gustavo Heide on clay. Gustavo Heide comes in at 7 wins from the last ten. Alex Hernandez is 2-8 across recent matches.
The serve is where this match separates: Heide has been winning 71.6% of first-serve points to Hernandez's 64%, and on clay that gap compounds fast. Anything other than a Heide win would rank among the bigger surprises of the week.