Alexander Zverev and Tallon Griekspoor meet in the round of 16 at Vienna on Thursday. Alexander Zverev is 8-2 across recent matches. Tallon Griekspoor has won 5 in a row and 6 of the last 10 overall.

Alexander Zverev simply rates much higher on hard, and our number follows from it. Anything other than a Zverev win would rank among the bigger surprises of the week.