The doctor of the Jamaican track team believes that Usain Bolt will be in top shape when it comes to defending his two Olympic golds.
Winston Dawes believes that the sprinter is in good form despite recent injury concerns and that he will once again dominate in the 100m and 200m races.
"He's back fully. He has been training very, very hard and his performance is on track.
"We expect he'll be fully fit by the time the Olympics come around."
The doctor added that fellow Jamaican star Yohan Blake is also showing good fitness ahead of the Games and therefore he could push Bolt into running a very fast time and possibly a new world record or two.
Bolt has been named as the flagbearer for Jamaica and will lead out the country's squad at the opening ceremony tonight – which is expected to be watched by around four billion people including many visitors staying at central London hotels.
The 100m final will take place on August 4th and four days later the 200m takes place. Bolt is also expected to compete in the 4 x 100m relay on August 10th.
Meanwhile, the draw has been made for the London 2012 tennis competition and Andy Murray has been given a tough opening match. The Brit will play Switzerland's Stanislas Wawrinka – the world number 26. Murray has lost four times out of ten to him, including in the third round of the US Open in 2010.
Novak Djokovic will face Italy's Fabio Fognini in the first round and Wimbledon champion Roger Federer will play Colombia's Alejandro Falla.