Juan Martin del Potro sent his devoted fans home happy by powering into the ATP Miami Open quarter-finals with a 6-4, 6-2 triumph over Serbian Filip Krajinovic.
Roared on by a partisan crowd, the 29-year-old Argentinian recovered from 1-4 down in the first set to reel off nine games in a row on his way to a last-eight match with Canada's Milos Raonic today.
Del Potro's welcome return to form and fitness saw him win the Indian Wells title and continue to impress at the last tournament in Key Biscayne before a move north to the NFL Miami Dolphins' home stadium next year.
"Playing here they make it special for the South American players and I am trying to enjoy the last time playing in Key Biscayne," Del Potro said.
"I know many Argentine fans live here and are so close. I will miss them."
"I'm confident I will feel better tomorrow. The better weather will make me feel better on court."
"I don't feel pressure. I am just going down my own road and seeing how far I can get. I am not thinking about ranking or anything. Just the last time here in Key Biscayne."
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"In a situation like that, if I'm feeling fit and healthy, which I am, and serving like I did today, I can beat a lot of people playing like that."
"We have had great matches in the past and I am excited what the future holds for us," Zverev said. "I returned very well, that's big factor against Nick. Borna is a very good player, it certainly won't be easy."