American Tyson Gay threw down the gauntlet to double Olympic champion Usain Bolt ahead of next month's world championships in Berlin by running the fastest 100 meters of the year to win at the Golden League meeting in Rome.
American Tyson Gay threw down the gauntlet to double Olympic champion Usain Bolt ahead of next month's world championships in Berlin by running the fastest 100 meters of the year to win at the Golden League meeting in Rome.