Andy Murray Rallies to Reach Miami Semi-Finals

World number four Andy Murray booked his semi-final berth at the Miami Masters on Wednesday, rallying for a 3-6, 6-4, 6-1 win over Austrian Dominic Thiem.

Third-seeded Murray, the champion at Crandon Park in 2009 and 2013, was initially stunned by the clean and powerful one-handed backhand of the 21-year-old Thiem, who has looked strong in Miami after coming into the tournament with a 3-5 record in 2015.

But Murray turned things around, and will face either Czech eighth seed Tomas Berdych or Argentine Juan Monaco for a place in the final. (Update: Murray will face Berdych)

"I expected a tough match, he's beaten some very good players this week," said Murray, who needed one hour and 44 minutes to seal the win. "He's a very big hitter of the ball, a very strong guy and he moves extremely well.

"When you let him dictate the points, he hits the ball as hard off each side as anyone. He made me do a lot of running."

Thiem, ranked 52nd in the world, now stands 1-7 against top-10 opponents.

But he surprised Murray in the opening set, breaking for 3-1 on his way to winning the first frame.

"I would've liked to have started the match a little bit better, but with his game style, if you're not, like, right on it from the beginning, he's an extremely tough, tough guy to play against," Murray said.

Two-time Grand Slam champion Murray launched his fight-back with a quick break for a 2-0 lead in the second.

Thiem regained the break to narrow the gap to 4-3, but Murray broke him in the final game of the set -- Thiem saving one set point before putting a backhand wide on another.

His confidence boosted, Murray ran away with the final set, taking his lead to 5-1 with a second break of Thiem before closing out the win with a service winner.

"Before this week I would have given a lot for the quarter-finals, but now of course in the first moment I'm a little bit disappointed, especially as I won the first set," Thiem said. "I played a good match.

"But I will leave Miami positive for sure and with a good feeling for the claycourt season."