Rafael Nadal and Roger Federer remain on course for a quarterfinal clash at the U.S. Open after both barely raise a sweat in rapid second-round victories. The NFL agrees to pay $765 million on programs and payouts to former players suffering long-term effects of concussions and head injuries. Former winners Barcelona, Milan, Ajax and Celtic are pooled in the same group in an intriguing UEFA Champions League draw that also pits defending champion Bayern Munich against Manchester City. Usain Bolt runs a relatively pedestrian 9.90 but that is still enough to win the 100 meters at the Weltklasse meet. Disgraced sprinter Ben Johnson, who was stripped of his 1988 Olympic gold medal in the 100-meter sprint, is to front a new anti-doping campaign.