Allyson Felix won her 15th world career medal on Saturday (Aug 12) as the United States won the women's 4x100 metres relay.
It was the sixth time the USA have won the event and the gold was also a record 15th World Championship medal for Felix.
The Americans, Olympic gold medalists in Rio a year ago, were led off by Aaliyah Brown who flew out of the blocks to start the run that brought them the world title they last won in 2011.
USM's Tori Bowie wins second gold at World Championships
The Americans timed 41.82 seconds with 100m world champion Tori Bowie bringing home the baton.
The changeover from Felix to Akinosun was clean, and the latter kept ahead of both Asher-Smith and Simone Facey, though her change over to Bowie was tight and heading into the final straight it looked as if Neita could pull off the slight upset.
Great Britain took silver in 42.12 seconds with Jamaica third in 42.19 seconds.
'N Korean missiles can reach Guam in 14 minutes'
USA bombers have flown over the Korean Peninsula several times to show American strength after Pyongyang's missile tests. The exclamation came after President Donald Trump warned Pyongyang of "fire and fury like the world has never seen".
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