June 5 (Reuters) - American Trayvon Bromell underlined his credentials as the Tokyo Olympics 100 metres gold medal favourite on Saturday by running the fastest time this year of 9.77 seconds at the New Life Invitational in Miramar, Florida.
Bromell becomes the ninth man to dip under 9.80 seconds, slashing nearly a 10th of a second off his personal best of 9.84.
Marvin Bracey of the United States was second in 9.85 followed by Chris Royster in 10.08. (Reporting by Steve Keating in Toronto. Editing by Christian Radnedge)