The brother of Atletico Madrid star Antoine Griezmann has mocked new Real Madrid signing Thibaut Courtois on social media.

Theo Griezmann has taunted the former Atletico and Chelsea goalkeeper after Atleti's European Super Cup triumph on Wednesday.

Theo posted on his Twitter: "Jump, jump, jump little kangaroo.."

The Belgium keeper famously sung the same song, mentioned by Theo, as he insulted Real Madrid fans following Atletico's 2013 Copa del Rey triumph.

Salta , Salta , Salta pequeño ... — T.o (@TheoGriezmann) August 15, 2018