Roger Federer has never been shy about discussing doping in tennis. (Matthew Stockman/Getty Images)
INDIAN WELLS, Calif. -- Roger Federer revealed that he doesn't recall getting drug tested once during the 16-match win streak he built up at this time of the year last season.
"I didn't get tested I don't think through the whole Rotterdam, Dubai, Indian Wells swing where I won all three tournaments," Federer told reporters at the BNP Paribas Open on Thursday. "I didn't get tested once. That shouldn't be OK."
The revelation came on the heels of the ITF's announcement that it will introduce the biological passport testing system to tennis, an anti-doping measure used in other sports such as cycling and track and field that monitors an athlete's biology via blood testing to identify abnormal changes that may indicate doping.
[Federer, Nadal on quarterfinal collision course]
"I think we've seen a lot of things happen all across the board in sports," Federer said. "Obviously the cycling issue has been issue has been around for some time but what surfaced this year is super extreme. I think that really gets you thinking.
"I think tennis has done a good job of trying everything to be as clean as possible but maybe we're entering a new era. Everything is becoming more professional, more serious, more money involved and so forth. So I just think we need to make sure from our side we do everything we can."
Federer is the defending champion at Indian Wells and could lose his No. 2 ranking to Andy Murray this week if the Scot makes the final. Last year he came surging into the tournament with wins in Rotterdam and Dubai. This year he has yet to make a final. Federer admits it's disappointing but that he's not too concerned.
"I think I played really well in Australia. Rotterdam, yeah I was disappointed with that because I thought I could have done better. I played so well the year before. I never really got going in the quarters against Benneteau. And then Dubai, it was a bit unfortunate you know losing with three match points. It's always that annoying press conference having to explain the loss even though you feel you maybe should be preparing for the finals at this point.
"I'm playing fine, you know. Obviously I would have hoped to win a tournament by now but overall I'm happy with my game."