Story of the match
World No.49 Etcheverry, who prior to this match was the only man left in the draw yet to drop a set, has similar qualities to his far more experienced opponent.
They both have heavy serves, dogged defence and good angles on their groundstrokes, and are more than happy to canvass the net. Who could bring the sharpest skillset?
The Argentine staved off break point in a bruising six-minute opening hold; these in-form athletes were settling in for the long haul.
Zverev's backhand drop shot was purring and his rocket returns caused much of the damage as the German chalked up a 4-3 break lead. The 2020 US Open runner-up was dragging Etcheverry from side to side with relentless groundstrokes, taking the opener with a smooth performance.