Twelve years after Michael Johnson retired from competition, the Olympic legend is back in the spotlight.
The track star from Dallas competed in three Olympics and has four gold medals. In London, Johnson will do commentary for the British Broadcasting Company.
"This will be my third Olympics covering the Games for BBC," he said. "I'm excited because I think we're going to see a really, really good Games."
Johnson recently carried the Olympic torch at Stonehenge as part of the relay leading up to the Opening Ceremony.
"It was an incredible experience for me because that was my first time going to Stonehenge," he said. "And so you put the two together, having the opportunity to carry the Olympic torch and add historical Stonehenge, and it was an incredible experience."
Johnson also made headlines recently with a documentary that aired on British television.
"The story is really about an investigation into the slave trade, the Atlantic slave trade, and whether or not that's had any effect on the dominance of descendants of the slave trade in the 100 meters," he said. "And so what it does is, it serves to make people think… and learn a lot about the slave trade and learn a lot about genealogy."
At the London Olympics, Johnson believes Team USA will control the track.
"The U.S. always finishes at the top of the medal table, and I don’t think that's going to be any different this time," he said.
But when the Games end, Johnson believes his world record in the 400-meter dash will still stand.
"My 200-meter world record was broken the last Olympics in Beijing by Usain Bolt. The 400-meter world record still stands, and I don't expect that anyone's going to break it at this Games."
