Coach Glen Mills is predicting 'fireworks' from his 21-year-old charge, Yohan Blake, at the upcoming World Championships in Daegu, South Korea, following the athlete's close second to former world record holder Asafa Powell in the men's 100 metres at the recently concluded Jamaica Athletics Administrative Association/Supreme Ventures National Senior Championships. "Yohan was not healthy at the meet, and come World Championships we will see the best from Yohan as I expect a lot of fireworks from him," said Mills, whose athlete clocked 10.09 seconds. Powell won in 10.08.