Bernard Tomic will play Tomas Berdych in the third round of the Miami Open after defeating American Austin Krajicek in straight sets.

Tomic shook off the effects of last week’s wisdom tooth trouble and back pain at Indian Wells – which forced him to forfeit a match – to win 7-6 (8-6) 7-5 on Friday (Saturday AEDT).

Eighth-seeded Czech Berdych progressed with a 6-3 6-4 victory over South Korea’s Chung Hyeon.

Berdych has won all three of his meetings against Tomic, most recently winning in straight sets when they met in the Australian Open fourth round in January.

Andy Murray backed up a Davis Cup victory over Donald Young with a brisk 6-4 6-2 win over the American to open his bid for a third Miami crown.

Murray, seeded third, has defeated Young in five of six meetings, including last month’s Davis Cup first-round date in Glasgow.

The Scot, who won titles at the town he uses as a training base in 2009 and 2013, mustered just 14 winners and hit 21 unforced errors, but it was enough compared to the 32 unforced errors from Young in the match played in draining heat and humidity.

The victory took less than 90 minutes and put Murray into a third-round meeting with Colombia’s Santiago Giraldo, who beat Robin Haase of the Netherlands 6-2 3-6 6-0.

“I’ve played well against him the last couple of times, today was a very different match to Davis Cup – completely different conditions,” Murray said.

Rafael Nadal, showed no signs of the ankle injury that gave him a scare this week, opened his Miami campaign with a 6-4 6-2 win over Nicolas Almagro.

South African 15th seed Kevin Anderson defeated American Sam Querrey 6-7 (5-7) 7-6 (7-3) 6-4.