Gay sets up double Bolt showdown after year's best 200m

Tyson Gay rocketed to the year's fastest 200 metres, clocking 19.74 seconds at the U.S. trials on Sunday to set up a double sprint clash with Olympic gold medallist Usain Bolt at August's world championships.

The big victory came two days after Gay ran a world-leading 9.75 seconds to win the 100 metres at the U.S. meeting in Des Moines, Iowa.

"It feels good to do that," said the 2007 triple world champion who has been beset by numerous injuries since then. "I am just happy to be healthy."

The win assured Bolt and Gay, barring injury, will both be in the 100 and 200 metres at the August 10-18 championships in Moscow.

Bolt won the 100 at the Jamaican championships in Kingston this weekend and has a wild card bye in the 200 metres.

Both also will run the 4x100 metres relay for their nations in Moscow.

Jamaican sprinters have dominated the Americans in the past two Olympics and world championships.

Gay, who displaced Bolt as the year's fastest 200 metres runner, would not be drawn into a war of words over whether the U.S. sprinters were ready to end Jamaica's streak.

"It's no secret Usain Bolt is obviously the greatest of all time," Gay said. "He's definitely going to be prepared."