Rafael Nadal and Andy Murray both made the fourth round at the Miami ATP hard court tennis tournament on Monday. Number 1 Nadal fought off a challenge from 74th-ranked Portuguese Federico Gil to win a tight 7-5, 6-3 victory, while fourth seed Scot Murray downed Chile's Nicolas Massu 6-4, 6-4.

"No opponent is easy, especially if you are not playing your best tennis," said Nadal. "Everything was more difficult today. I didn't play very well, and I had chances to lose the first set."

Nadal's victory was his 23rd of the season against just two defeats as he strives for a third 2009 trophy.

Joining in the last 16 in Miami were sixth seed Juan Del Potro as the Argentine beat Serb Janko Tipsarevic 6-4, 6-1, and Viktor Troicki who won over German Bjorn Phau 6-4, 6-3.

【体坛英语资讯：Nadal, Murray make fourth round at Miami tennis】相关文章：

★ 娱乐英语资讯：Tom Cruise and wife set to move to New York

★ 体坛英语资讯：11 ministries join hands to combat doping

★ 体坛英语资讯：Alonso and Hamilton wait on FIA hearings

★ 体坛英语资讯：Denmark coach appologizes for impolite behavior

★ 体坛英语资讯：China win 3-2 over Denmark

★ 体坛英语资讯：China beats Poland in womens basketball friendly

★ 体坛英语资讯：Rooneys return perfectly timed for United

★ 体坛英语资讯：Adriano may sit out Sundays game

★ 娱乐英语资讯：Cage confronts naked intruder in home

★ 体坛英语资讯：Government cooperation needed in doping fight