Celtics vs. Lakers. Yankees vs. Red Sox. USA vs. Jamaica. Rivalries like these don’t just define sports, they elevate them. They create storylines, tension, and moments fans never forget. In track and field, no matchup captures that energy more than the United States versus Jamaica.

Grand Slam Track makes its next stop this weekend in Philadelphia, bringing with it a host of exciting developments. From debut appearances and format tweaks to shifts in race distances and scheduling, there’s plenty to look forward to. Of course, the spotlight is on Sydney McLaughlin-Levrone’s highly anticipated move to the women’s short hurdle group—but here are several other key storylines to watch:

Grand Slam Track has officially announced the full lineup of challengers for the upcoming meeting in Philadelphia, taking place May 31–June 1. This edition will feature an expanded roster of challengers to help fill the void left by several signed racers absences due to injury, including Devon Allen, Masai Russell, Roshawn Clarke, Cyréna Samba-Mayela, Oblique Seville, Jasmine Camacho-Quinn, and Luis Grijalva. Additionally, signed racer Fred Kerley is currently suspended pending legal proceedings.

EUGENE -- Christian Coleman stunned world champion Noah Lyles to win the men's 100m in a world-leading 9.83 at the Diamond League Prefontaine Classic at Hayward Field.

Christian Coleman, the 2019 100m world champion, has been banned from the sport for two years. The fastest man in the world now will likely miss next summer's Olympics, the result of a case that was rooted in missed drug tests and spanned the past two years.

The crux of Christian Coleman’s argument that he arrived back at home on December 9, 2019, during his drug testing window and therefore should not have incurred a whereabouts violation rests on whether or not you trust the sprinter. 

2019 World Champion, Christian Coleman is the latest 'high-profile' athlete to be charged with a 'whereabouts failure' in what is now a growing list of athletes violating this anti-doping protocol.

In the 100m final, Christian Coleman shone brighter than the lights that illuminated the track with his name during his introduction at Khalifa International Stadium.

After nearly two weeks of speculation and uncertainty, the U.S. Anti-Doping Agency (USADA) dropped its case against Christian Coleman today, preserving the world's fastest man's eligibility to compete at the upcoming outdoor world championships and contend for the 2020 Olympic Games. 

Christian Coleman may be facing a two-year suspension due to three missed drug tests.