Fred Kerley warned them United States of America will seek world domination after being crowned 100m world champion.
Favorite Kerley clinched the 100-meter title ahead of teammates Marvin Bracy (9.88s) and Trayvon Bromell (9.88s) as the States sealed a clean home win in Eugene on Saturday night.
He ran 9.86 seconds at the World Championships to complement the 100m Olympic silver he won in Tokyo last year and the 2019 400m world bronze.
Kerley, 27, was fighting for the win and only took the lead in the final five yards but held off a challenge from his teammates.
“It is a wonderful blessing to be swept clean. I have a feeling we can dominate again at the World Championships next year (in Budapest),” said Kerley, who only retired from the 400m earlier last year.
“We’ve all put the work in, come home and come back next year. This win means I can run 100m, 200m and 400m. I got a medal in the 400m and 100m.
“There’s only one left. I’m approaching the 200m by resting today and tomorrow and getting work done on Monday morning.”
It came to Britain Zharnel Hughes fell in the semifinals when he stumbled in his run, running just 10.13 seconds.
He said: “It was a misstep that cost me the race. I couldn’t help it.
“It is very difficult to get through, but the Lord gives the toughest battles for the strongest soldiers. I believe I am one of the strongest soldiers and will face the battle with my head held high.”
Olympic champion Marcel Jacobs had already pulled out before the semifinals, saying he didn’t want to risk any more injuries.
The Italian ran 10.04 seconds on Friday but appeared to be struggling in his run.
Dina Asher-Smith stormed to victory in her 100m dash in 10.84 seconds – just a hundredth of a second shy of her British record – and qualified fastest for Sunday’s semi-finals.
The reigning 200m world champion, who also won 100m silver in Doha, said: “I had to qualify and win my run. I come here as the reigning world champion and world silver medalist so expectations are high for me.
“I knew I had been waiting all season to reach my peak here. I still have something to give, but I’m glad I hit all the essential parts.
“I thought I set it up well. All these women are very, very fast and there are some very talented youngsters so you really have to pay attention in the heats because those are the girls who have absolutely nothing to lose.”
Daryll Neita posted a best season of a season with 10.95 seconds, finishing behind two-time Olympic gold medalist Shelly-Ann Fraser-Pryce and reaching the semifinals.
Imani Lansiquot did not progress after finishing fourth in her race in 11.24 seconds.
Laura Muir also reached the 1500m final on Monday after finishing second in her semifinal. The Scot ran a season-best four minutes and 01.78 seconds as her hunt for her first World Championship medal continued.
She said: “Considering that this was the fastest 1500m this year, I’m very happy.
“When I ran the heat, I was like, ‘Yeah, we’re fine.’ I won’t say it was easy because it was fast, but it felt good and comfortable at this pace, which is really good news.”
Josh Kerr, Neil Gourley and Jake Wightman advanced to the men’s semifinals on Sunday Oregon.
Earlier, Eilish McColgan blamed injury after suffering disappointment in the 10,000m.
The 31-year-old, who had run the second fastest 10,000 m this year and had counted on an outside shot for a medal, finished 10th in the final.
She ran 30 minutes 34.60 seconds with her British teammate Jess Judd in 11th place. World record holder Letesenbet Gidey of Ethiopia took gold in 30 minutes 09.94 seconds.
“I felt like I was getting fit again and then five days ago I got a loosening in my Achilles tendon,” said McColgan, who is still scheduled to run the 5,000m.
Andrew Pozzi qualified for the 110m hurdles semifinals after running 13.45 seconds in his run to finish third.
He will be joined on Sunday by his teammates Dave King, who ran 13.57 seconds in heat five, and Josh Zeller, who ran 13.41 seconds in heat two.
Aimee Pratt ran nine minutes and 18.91 seconds for a new British record in the 3000m steeplechase to reach the final, but Lizzie Bird did not qualify.
Morgan Lake pulled out of high jump qualification as she continues to self-isolate after catching Covid during UK hold camp.