Justin Gatlin is back with Nike for a new sponsorship deal.
Gatlin, the fastest man in 2014, inked the deal ahead of the busy 2015, 2016 and 2016 seasons.
The IAAF will have World Championships in Beijing this year and London in 2017 while Rio will host the 2016 Olympic Games.
Meanwhile, Tyson Gay, who was dropped by Adidas when he tested positive, is also said to be going back with Nike.
