2/12/13 4:09 PM | Johan Lindahl
Roger Federer has joined the campaign initiated in recent weeks by Andy Murray, saying he agreed with the Scot's call for more blood testing to bolster the tennis anti-doping effort.
The Swiss said that while he felt the sport was very clean, the extra scrutiny would hopefully deter anyone from even considering trying to cheat.
"We should be more in terms of blood testing," said the 31-year-old, bidding this week as top seed in Rotterdam for a third Dutch title. "I also support the biological blood passport, with information stored away. It's important to make sure that tennis is credible and clean to a maximum.
"We don't want players even getting the idea to cheat. Of course we need more funding. Maybe the Grand Slams should put in more since they have the most to lose if one of their players is not clean.
"I feel tennis is very clean, there's maybe one case a year and they are not all done on purpose. Some are just mistakes, but stupidity can get you into trouble also."
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