RIO DE JANEIRO, Jan. 4 -- Brazilian tennis player Thomaz Bellucci has been banned for five months after failing a doping test.

The 30-year-old tested positive for the diuretic and masking agent hydrochlorothiazide during the Swedish Open in July, the International Tennis Federation (ITF) said on Thursday.

It added that Bellucci was not guilty of any "significant fault or negligence", accepting that the result was due to contaminated vitamin supplements.

The ban has been backdated to August, meaning the world No. 112 is free to return on February 1.

Bellucci, who reached a career high of 21 in the rankings in 2010, said: "I could never imagine that a multivitamin made by a pharmacy could suffer crossed contamination in minimal amounts. I always took care and respected the rules."

【体坛英语资讯：Brazils Bellucci handed 5-month doping ban】相关文章：

★ 娱乐英语资讯：Mary-Kate Olsen hospitalized in NYC

★ 娱乐英语资讯：Kylie emerges with a new single and dazzling make-over

★ 娱乐英语资讯：Tom and Katie plan steamy photo shoot

★ 体坛资讯：Late starters face uphill task in China

★ 体坛英语资讯：Injured volleyball aces return for Olympic training session

★ 体坛英语资讯：Portugal advances, Switzerland eliminated at Euro 2008

★ 体坛英语资讯：Rocket explosion

★ 体坛英语资讯：Beckham says hes fit for England selection

★ 体坛英语资讯：Stephen Maguire triumphs in China Open

★ 体坛英语资讯：Federers stomach bug gives rivals a lift