Jamaican six-time Olympic champion Usain Bolt is capable to break his world records in 100m and 200m, his coach Michael Clarke said Thursday.

"As for his peaking, he's still a young man and he appears to have a lot left in him," Clarke said, adding he believe the 26- year-old will do as well as he did in the past.

The Jamaican retained the 100m, 200m and 4x100m Olympic titles at the 2012 London games.

According to Clarke, Bolt's head athletics coach, it is possible for the sprinter to set another world record.

"It's definitely very exciting ... It would be good if he can have another world record, let's see what happens," Clarke told local sports media R-Sport.

Bolt won't face his three major rivals in the upcoming World Championships in Moscow, since reigning world champion Yohan Blake is injured, while Tyson Gay and Asafa Powell have both failed doping tests.

Clarke said Bolt doesn't need rivals to push him forward. "I think he is driven by his own inherent ambitions and with the athletes that he has around him."

Thus, other top runners' absence won't impact Bolt "one way or the other," the coach added.

Athletes from 204 countries and regions are expected to participate in the world athletics championships to be held in Moscow August 10-18.