Usain Bolt was pushed all the way in the 100m before powering home to take victory at the Diamond League in Oslo in a time of 9.79 seconds.
The world record holder finished clear of Asafa Powell, who came second in 9.85 seconds, his best time of 2012.
Team GB’s Marlon Devonish finished sixth but Mark Lewis-Francis was disqualified following a false start.
Jessica Ennis, who was taking part in the 100m hurdles, also paid the price for leaving the blocks early.
