FILE - Al Joyner, left, and Florence Griffith Joyner smile during a press conference at the Olympic Games in Seoul, in this Saturday, Sept. 17, 1988, file photo. For 33 years, sprinters have been chasing the records cemented next to the name “Florence Griffith Joyner.” The current wave of speedsters, few of them who were even born when the late Flo-Jo commanded the stage, keeps creeping closer to the late sprinter's hallowed marks in the 100 (10.49 seconds) and the 200 (21.34). So much so that her husband, Al Joyner, firmly believes the records might soon fall — maybe over the next 10 days at the Tokyo Games.(AP Photo/Mark Duncan, File)

FILE - In this July 17, 1988, file photo, coach Bob Kersee lifts Florence Griffith Joyner in a victory celebration after she won the 100-meter dash during the United States Olympics qualifications in Indianapolis. For 33 years, sprinters have been chasing the records cemented next to the name “Florence Griffith Joyner.” The current wave of speedsters, few of them who were even born when the late Flo-Jo commanded the stage, keeps creeping closer to the late sprinter's hallowed marks in the 100 (10.49 seconds) and the 200 (21.34). (AP Photo/Tom Strickland, File)

FILE - In this Sept. 29, 1988, file photo, Florence Griffith Joyner, of the United States, waves to spectators as she holds a sign following her world record performance in the finals of the women's 200-meters race, in Seoul, South Korea. The name Flo-Jo is popping up quite a bit these days with sprinters creeping closer to her record times in the women’s 100 and 200 races. The late Florence Griffith Joyner has held both marks for three decades. (AP Photo/Lennox McLendon, File)

FILE - In this Sept. 25, 1988, file photo, Florence Griffith-Joyner celebrates her victory in the 100-meter dash at the Olympic Games in Seoul, South Korea. She was clocked at 10.54 seconds, to break an Olympic record. Natalia Pomoshchnikova, right, of the Soviet Union, finished sixth in the race. For 33 years, sprinters have been chasing the records cemented next to the name “Florence Griffith Joyner.” The current wave of speedsters, few of them who were even born when the late Flo-Jo commanded the stage, keeps creeping closer to the late sprinter's hallowed marks in the 100 (10.49 seconds) and the 200 (21.34). (AP Photo/Dieter Endlicher, File)

FILE - In this Sept. 29, 1988, file photo, U.S. sprinter Florence Griffith Joyner of Los Angeles strides to a world record in a semifinal heat of the Olympic women's 200-meter dash in Seoul, South Korea. The name Flo-Jo is popping up quite a bit these days with sprinters creeping closer to her record times in the women’s 100 and 200 races. The late Florence Griffith Joyner has held both marks for three decades. (AP Photo/Lennox McLendon, File)