Miami, FL (SportsNetwork.com) - Two-time champion Andy Murray needed three sets on Wednesday to reach the semifinals at the $5.3 million Miami Open, the second consecutive ATP Masters 1000 event.

The third-seeded British star snuck past talented 21-year-old Austrian young gun Dominic Thiem 3-6, 6-4, 6-1 in 1 hour, 44 minutes at Crandon Park.

The Australian Open runner-up Murray, who trains three months out of the year in Miami, titled here in 2009 and 2013 and was the runner-up in 2012.

Up next for the athletic Scot will be eighth-seeded Czech slugger Tomas Berdych or gritty Argentine Juan Monaco. The former Wimbledon runner-up Berdych was a Miami finalist in 2010.

Two more quarterfinals will be staged on Thursday when world No. 1 Novak Djokovic takes on sixth-seeded David Ferrer and fourth-seeded U.S. Open runner-up Kei Nishikori battles 22nd-seeded American John Isner.

The four-time champion Djokovic beat Rafael Nadal in last year's marquee Miami finale.

The former French Open runner-up Ferrer reached the Miami final two years ago, losing to Murray.

This weekend's champ will earn $900,400.