NFL superstar's brother Jackson Mahomes has been filmed snorting a suspicious substance at a concert in Missouri.

Social media influencer Jackson, 21, is brothers with Kansas City Chiefs' Quarterback Patrick Mahomes, 26 - one of the sports biggest names.

Patrick is widely regarded as the next face of the NFL, projected to follow in Tom Brady's footsteps in terms of success and legendary status.

But his little brother Jackson, who found fame on Tik Tok, is not so highly regarded, and has been filmed snorting a suspicious substance.

Jackson was at the Cable Dahmer Arena in Independence, Missouri, attending a music event with a woman when he was caught seemingly taking drugs.

In the video, filmed by a fellow concert goer, Jackson can be seen tilting his head back and inhaling something before his female companion reaches over and wipes his nose.

An eyewitness said: "I noticed him pretty much straight away and could immediately tell he was super high.

"You can see from the video he looks really spaced out, and that's what he was like all evening.

"He is really rubbing people up the wrong way with his behaviour at Chiefs' games and this sort of stuff isn't helping."

This isn't the first time Jackson has drawn some negative press, and some Chiefs fans are getting sick of his wild antics.

When the Chiefs faced the Baltimore Ravens, the younger sibling was filmed appearing to dump a bottle of water on a Raven fan below him in the general section.

He also caused a stir when he disrespected a deceased opposition NFL player by dancing on his shirt number which was painted on the field as a memorial.

The video was filmed on December 9.

Jackson Mahomes has been approached for comment.

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