Felix comes out of retirement, helps 4×400 relay into final


              Nia Ali, of the United States, falls while competing in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Nia Ali, of the United States, falls while competing in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Anne Zagre, of Belgium, competes alone in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. Zagre in lane six got hampered during the race at the 10th hurdle by Nia Ali, of the USA in lane five. Ali of the USA knocked a hurdle over and got in lane six, affecting Zagre. (AP Photo/Ashley Landis)
            
              Anne Zagre, of Belgium, competes and falls alone in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. Zagre in lane six got hampered during the race at the 10th hurdle by Nia Ali, of the USA in lane five. Ali of the USA knocked a hurdle over and got in lane six, affecting Zagre. (AP Photo/Ashley Landis)
            
              Anne Zagre, of Belgium, competes and falls alone in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. Zagre in lane six got hampered during the race at the 10th hurdle by Nia Ali, of the USA in lane five. Ali of the USA knocked a hurdle over and got in lane six, affecting Zagre. (AP Photo/Ashley Landis)
            
              Anne Zagre, of Belgium, falls running alone in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. Zagre in lane six got hampered during the race at the 10th hurdle by Nia Ali, of the USA in lane five. Ali of the USA knocked a hurdle over and got in lane six, affecting Zagre. (AP Photo/Gregory Bull)
            
              Anne Zagre, of Belgium, runs alone in a heat in the women's 100-meter hurdles at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. Zagre in lane six got hampered during the race at the 10th hurdle by Nia Ali, of the USA in lane five. Ali of the USA knocked a hurdle over and got in lane six, affecting Zagre. (AP Photo/Gregory Bull)
            
              Allyson Felix, of the United States, competes in a heat during the women's 4x400-meter relay at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. (AP Photo/Ashley Landis)
            
              Allyson Felix, of the United States, waits to run in a heat of the women's 4x400-meter relay at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore.(AP Photo/David J. Phillip)
            
              Allyson Felix, of the United States, runs in a heat of the women's 4x400-meter relay at the World Athletics Championships on Saturday, July 23, 2022, in Eugene, Ore. (AP Photo/Charlie Riedel)
Felix comes out of retirement, helps 4×400 relay into final