Was looking to see if Morgan raced today (don't think he did) but I found the video of his 1500m race on July 2nd. Around the 4:00 minute mark it looks like he's wearing a pair of unbranded dragonfly's?
Initially thought they were an ON prototype but the silhouette and cutouts in the heel make them look a lot like Nike's. Don't know if this has been brought up already, but thought it was odd, especially with ON recently releasing their spikes.