Allyson Felix set to say farewell after one final race


              Christian Coleman, center, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Fred Kerley, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, runs in the the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Allyson Felix, of the United States holds her bronz medal at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Christian Coleman, center, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Fred Kerley, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Fred Kerley, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, runs in the the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Allyson Felix, of the United States holds her bronz medal at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, gives her daughter Camryn her bronze medal after the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
            
              Christian Coleman, center, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Fred Kerley, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Fred Kerley, of the United States, wins a heat in the men's 100-meter run at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, prepares to run the final 4x400 meters mixed relay at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, runs in the the 4x400-meter mixed relay final at the World Athletics Championships Friday, July 15, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, center, speaks during a news conference before the World Athletics Championships Thursday, July 14, 2022, in Eugene, Ore. (AP Photo/Gregory Bull)
            
              Allyson Felix, of the United States speaks during a news conference before the World Athletics Championships Thursday, July 14, 2022, in Eugene, Ore. (AP Photo/Gregory Bull)
            
              FILE - Allyson Felix of the United States smiles at the finish line of the women's 200-meter competition at the Golden Gala Pietro Mennea IAAF Diamond League athletics meeting in Rome, Thursday, June 9, 2022. (AP Photo/Andrew Medichini, File)
Allyson Felix set to say farewell after one final race