Caster Semenya and Andre De Grasse headline a Diamond League meet in Oslo, live on Thursday starting at 12:15 p.m. ET on NBC Sports Gold and 2 p.m. on NBCSN.
The Olympic champion Semenya puts her 16-meet winning streak on the line in the 800m against the Rio silver and bronze medalists.
De Grasse, a three-time Olympic medalist for Canada, could be the top challenger to Usain Bolt in Bolt’s final individual race at the world championships in August. But De Grasse finished fourth and fifth in his first two Diamond League 100m races this season.