© Mike Lawrence/ATP Tour
Kecmanovic/Qureshi also survive Match Tie-break
Sebastian Korda and Michael Mmoh claimed a hard-fought victory on their team debut on Friday at the Miami Open presented by Itau.
The American wild cards saved six of the eight break points they faced to beat Fabio Fognini and Maximo Gonzalez 6-3, 2-6, 10-7. Korda and Mmoh won four straight points from 6/7 in the Match Tie-break to reach the second round.
Korda and Mmoh will meet Tim Puetz and Alexander Zverev for a place in the quarter-finals. The Germans defeated third seeds Marcel Granollers and Horacio Zeballos 6-2, 6-4 on Thursday.
Miomir Kecmanovic and Aisam-Ul-Haq Qureshi also needed a Match Tie-break to get through their Miami opener. Kecmanovic and Qureshi overcame Marcelo Melo and Jean-Julien Rojer 6-7(5), 6-3, 10-4 to book a second-round spot.