Intro:

There were wins for Mikhail Kukuskin, Borna Coric and Vasek Pospisil as round one of the ATP Miami Open continued on Thursday (26th March). There were also wins for Alexandr Dolgopolov and Jurgen Melzer

Script:

Round one Miami Open action continued with Mikhail Kukuskin of Kazakhstan beating Steve Johnson 6-4, 3-6, 6-2.

Kukushkin's victory made Johnson the first American to exit this year's competition.

Elsewhere, Andreas Haider-Maurer was also dumped out at the first hurdle thanks to a surprising comeback by Croatia's Borna Coric.

The Austrian won a comfortable first set 6-1 before Coric won the second 6-3 and forced the third into a tie-break, which he eventually won 7-6.

Juan Martin del Potro's return from injury proved to be an unhappy one, with Canada's Vasek Pospisil taking full advantage of the former world number four's rustiness to carve out a 6-4, 7-6 win.

The win marks Pospisil's first in Miami.

Elsewhere Alexandr Dolgopolov advanced to the second round of the Miami Open following a straight-sets win over Ricardas Berankis.

The 26-year-old Ukrainian beat his Lithuanian counterpart 6-4, 6-1.

Jurgen Melzer advanced in straight sets in his clash with Ryan Harrison.

Melzer needed a tiebreak to seal the first set before taking the second for a 7-6, 6-3 victory.