Ashley Wagner, of the United States, skates at the figure stating practice rink ahead of the 2014 Winter Olympics, Wednesday, Feb. 5, 2014, in Sochi, Russia. (AP Photo/Ivan Sekretarev)
Russian tennis player Maria Sharapova signs autographs for children while visiting her first court in Riviera Park, Wednesday, Feb. 5, 2014, in Sochi, Russia, prior to the start of the 2014 Winter Olympics. (AP Photo/Pavel Golovkin)
Russian tennis player Maria Sharapova poses with children while visiting her first court of Kafelnikov Tennis School in Riviera Park in Sochi, Russia, Wednesday, Feb. 5, 2014, prior to the start of the 2014 Winter Olympics. (AP Photo/Pavel Golovkin)
Russian tennis player Maria Sharapova signs her autograph on the wall at her first court in Riviera Park, Wednesday, Feb. 5, 2014, in Sochi, Russia, prior to the start of the 2014 Winter Olympics. (AP Photo/Pavel Golovkin)
Russian tennis player Maria Sharapova poses for photographers while visiting her first court of Kafelnikov Tennis School in Riviera Park in Sochi, Russia, Wednesday, Feb. 5, 2014, prior to the start of the 2014 Winter Olympics. (AP Photo/Pavel Golovkin)
Russian President Vladimir Putin speaks while visiting the Coastal Cluster Olympic Village ahead of the 2014 Winter Olympics on Wednesday, Feb. 5, 2014, in Sochi, Russia. (AP Photo/Pascal Le Segretain, Pool)
The Russian flag flutters over the ski jumping stadium prior to the 2014 Winter Olympics, Wednesday, Feb. 5, 2014, in Krasnaya Polyana, Russia. (AP Photo/Dmitry Lovetsky)
Russian President Vladimir Putin meets with athletes from the United States while visiting the Athletes Village in the Coastal Cluster ahead of the Sochi 2014 Winter Olympics on Wednesday, Feb. 5, 2014, in Sochi, Russia. (AP Photo/Pascal Le Segretain, Pool)