Result: Tomas Berdych safely through to Miami Masters quarter-finals

Tomas Berdych returns the ball to Marius Copil during their match in the ATP Dubai Duty Free Tennis Championships on February 25, 2014
Tomas Berdych overpowers a spirited Joao Sousa at the Miami Masters, beating the Portuguese 6-2 6-4 to book a quarter-final meeting with John Isner in Florida.

Tomas Berdych had things mostly his own way in beating a spirited Joao Sousa 6-2 6-4 this evening to progress to the last eight of the Miami Masters in Florida.

The Czech appeared as through he would make quick work of the world number 42 when he stormed into a 5-0 lead in the first set, but Sousa showed his belligerence.

The 24-year-old slowly settled into the contest by holding for the first time, and then claimed a break back to take the scores to 5-2, but Berdych ensured that his comeback would end prematurely.

In an epic eighth game of the set, which went to deuce on five occasions, the former Wimbledon finalist snatched a break point at the third time of asking to move ahead in the match after 38 minutes.

Sousa continued his resilient response by going blow for blow with Berdych from the back of the court as they exchanged games early in the second, until the world number seven broke for a fourth time.

Although Sousa again did not roll over and broke back immediately, Berdych upped the ante to overpower the Portuguese and thump his way to a quarter-final meeting with American John Isner.

John Isner returns a shot to Milos Raonic of Canada during the Western & Southern Open on August 15, 2013
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ATP RankingsPoints
1Scotland flag Andy Murray7,750
2Spain Rafael Nadal7,555
3Switzerland Roger Federer7,145
4Switzerland Stanislas Wawrinka5,780
5Serbia Novak Djokovic5,325
6Croatia Marin Cilic5,155
7Alexander Zverev4,470
8Austria Dominic Thiem4,030
9Japan Kei Nishikori3,285
10Canada Milos Raonic3,230
11Bulgaria Grigor Dimitrov3,070
12France Jo-Wilfried Tsonga2,770
13Belgium David Goffin2,560
14Spain Roberto Bautista Agut2,425
15Czech Republic Tomas Berdych2,390
16United States Jack Sock2,335
17Pablo Carreno Busta2,305
18Lucas Pouille2,220
19United States John Isner2,110
20United States Sam Querrey2,060