Russia's Prime Minister Vladimir Putin (C) sits with a group at the "Moscow" sports complex in St Petersburg, on December 22, 2010 where he took part in a judo training session. AFP PHOTO/ RIA-NOVOSTI POOL/ ALEXEY DRUZHININ

Russia's Prime Minister Vladimir Putin (C) sits with a group at the "Moscow" sports complex in St Petersburg, on December 22, 2010 where he took part in a judo training session. AFP PHOTO/ RIA-NOVOSTI POOL/ ALEXEY DRUZHININ

Russia's Prime Minister Vladimir Putin (C) sits with a group at the "Moscow" sports complex in St Petersburg, on December 22, 2010 where he took part in a judo training session. AFP PHOTO/ RIA-NOVOSTI POOL/ ALEXEY DRUZHININ

Russia's Prime Minister Vladimir Putin (R) speaks with a group of judokas at the "Moscow" sports complex in St Petersburg, on December 22, 2010 where he took part in a judo training session. AFP PHOTO/ RIA-NOVOSTI POOL/ ALEXEY DRUZHININ

PHOTO: EAST NEWS/AFP PHOTO Russian President Vladimir Putin speaks during a visit to a mountainside of Sochi resort, 20 February 2007. Members of the International Olympic Committee (IOC) Evaluation Commission arrived in Sochi late on Sunday, their second stop on a three-city tour to evaluate which city will win the right to host the 2014 Winter Games. AFP PHOTO / POOL / MAXIM MARMUR

Legendary Japanese World and Olympics judo champion Yasuhiro Yamashita, right, shows off his skills to Russian President Vladimir Putin during a master class for students at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a black belt in the sport and a KGB veteran of 16 years, met Yamashita on a trip to Tokyo last month and invited him to visit Russia. On Friday night, Putin treated Yamashita with a dinner at a St. Petersburg restaurant. (AP Photo/Dmitry Lovetsky)

President Vladimir Putin reads a Russian judo magazine while attending a master class at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a judo black belt and a KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin limbers up during a master class at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a judo black belt and a KGB veteran of 16 years, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin attends a master class at a judo school in St. Petersburg, Russia, Saturday, Dec. 24, 2005. Putin, a judo black belt and KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/ITAR-TASS, Sergei Zhukov, Presidential Press Service)

Russian President Vladimir Putin, left, and Japanese judo coach Yasuhiro Yamashita hold a master class at a judo school in St. Petersburg, Russia, Saturday, Dec. 24, 2005. Putin, a judo black belt and KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/ITAR-TASS, Sergei Zhukov, Presidential Press Service)

Legendary Japanese World and Olympics judo champion Yasuhiro Yamashita, right, applauds as Russian President Vladimir Putin bows during a master class for students at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a black belt in the sport and a KGB veteran of 16 years, met Yamashita on a trip to Tokyo last month and invited him to visit Russia. On Friday night, Putin treated Yamashita with a dinner at a St. Petersburg restaurant. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin attends a master class at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a judo black belt and a KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin attends a master class at a judo school in St.Petersburg, on Saturday, Dec. 24, 2005. Putin, a judo black belt showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin limbers up during a master class at a judo school in St. Petersburg, Saturday, Dec. 24, 2005. Putin, a judo black belt showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin takes off his belt during a master class at a judo school in St.Petersburg, on Saturday, Dec. 24, 2005, with Japanese World and Olympics judo champion Yasuhiro Yamashita in the background. Putin, a black belt in the sport and a KGB veteran of 16 years, met Yamashita on a trip to Tokyo last month and invited him to visit Russia. On Friday night, Putin treated Yamashita with a dinner at a St.Petersburg restaurant. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin attends a master class at a judo school in St.Petersburg, on Saturday, Dec. 24, 2005. Putin, a judo black belt showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

From right in the middle row, Russian President Vladimir Putin, legendary Japanese World and Olympics judo champion Yasuhiro Yamashita and Sydney Olympics judo champion Kosei Inoue, pose for a photo with students of a judo school after a master class in the school, St.Petersburg, Saturday, Dec. 24, 2005. Putin, a black belt in the sport met Yamashita on a trip to Tokyo last month and invited him to visit Russia. On Friday night, Putin treated Yamashita with a dinner at a St.Petersburg restaurant. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin, left, and Sydney Olympics judo champion Kosei Inoue, right, show their skills during a master class at a judo school, St.Petersburg, Saturday, Dec. 24, 2005. Putin showed off his judo skills Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/Dmitry Lovetsky)

Russian President Vladimir Putin attends a master class at a judo school in St. Petersburg, Russia, Saturday, Dec. 24, 2005. Putin, a judo black belt and a KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/ITAR-TASS, Sergei Zhukov, Presidential Press Service)

Russian President Vladimir Putin attends a master class at a judo school in St. Petersburg, Russia, Saturday, Dec. 24, 2005. Putin, a judo black belt and KGB veteran, showed off his skills in the sport Saturday in nationwide television footage, giving a master class to students of a judo school in his home city. (AP Photo/ITAR-TASS, Sergei Zhukov, Presidential Press Service)