At North Greenwich Arena: Better than the Dream Team of 1992? You can judge for yourself when the U.S. men's basketball team takes on Spain for the gold medal -- a rematch of the 2008 final in Beijing won 118-107 by the Americans. Team USA relies on a star-studded lineup, including LeBron James, Kobe Bryant, Kevin Durant and Carmelo Anthony. Spain is led by the Gasol brothers -- Pau of the Lakers and Marc of the Grizzlies. Meanwhile, Mike Krzyzewski told The Associated Press he will step down as U.S. men's coach after today. Russia plays Argentina for the bronze medal.At The Mall: In the men's marathon, American hopefuls Abdi Abdirahman, Ryan Hall and Meb Keflezighi, who won the silver in Athens in 2004, will challenge the Kenyans and Ethiopians in the final track and field event of the Games. It's a scenic route that takes the runners past the River Thames, Houses of Parliament and Buckingham Palace. At the Olympic Stadium: The Closing Ceremony wraps up the Games with a tribute to British music for every taste -- including a rumored Spice Girls reunion and current teen dreams One Direction -- and songs and dance from Brazil, which will host the 2016 Summer Games. Thousands of athletes from 204 competing nations will march.