<p>Spaniard Granollers and Argentine Zeballos, who initially paired ‌up in 2019, won the French Open and US Open last year and justified their top ‌seeding, having not ​dropped a set ‌in their 2026 Roland Garros campaign.</p><p>Finland's Heliovaara was error-prone ‌with his serve throughout the match ⁠as the second ‌seeds, who have also won two Grand Slams together, ​struggled to keep up with their opponents' well-placed winners from close to the ​net.</p><p><strong>"I'm 41 years old (and) this is one of the best moments of my career. So it's ⁠never too late ​for anybody," </strong>said Zeballos, whose partner, Granollers, is 40.</p><p>A Heliovaara double fault handed the first break to the holders in the third game. Although ‌the second seeds broke back to make it 3-3, Granollers hit two forehand winners to break in the next game, tilting the set back in the top seeds' favour.</p><p>Briton Patten began the second set with two unforced errors and a double fault as Granollers and Zeballos got another break, and the Argentine hit winners ‌all over the court to extend the lead ​to 3-0, which proved insurmountable for their opponents.</p><p><strong>"Sorry ‌guys, wasn't the best, but thank you," </strong>Patten, 30, told his family and friends in the stands.</p><p><strong>"Harri, thanks for being my partner. We're going to bounce back stronger, we ⁠know that," </strong>he ⁠said of the ‌37-year-old Finn.</p><p><strong>See all the key match stats on Flashscore.</strong></p>