Antonio Rudiger spotted twisting Alvaro Morata's NIPPLE during Madrid derby, his reaction is hilarious

Antonio Rudiger was spotted in a slightly bizarre exchange with Alvaro Morata during the Madrid derby between Real Madrid and Atletico Madrid.

The chaotic match-up, which was the semi-final of the Spanish Super Cup in Saudi Arabia, saw Atletico take an early lead through Mario Hermoso.

But Real responded quickly, with Rudiger and Ferland Mendy getting on the scoresheet, before Antoine Griezmann equalised again with a stunning strike shortly before half time.

Rudiger then suffered the ignominy of scoring an own goal - in what was an eventful evening for the former Chelsea defender - before Dani Carvajal's 85th minute goal for Real took the game to extra time.

There, in slightly reminiscent scenes to the 2014 Champions League final, Carlo Ancelotti's side went ahead on 116 minutes through Stefan Savic's own goal, before Brahim Diaz sealed the 5-3 victory in the 122nd minute.

Real will now take on the winner of the second semi-final between Barcelona and Osasuna to determine the victor of the Spanish Super Cup.

There was plenty of controversy throughout the evening, with Los Blancos midfielder Toni Kroos seeing his every touch booed by supporters during the game.

But there was also an unusual incident involving ex-Chelsea team-mates Rudiger and Morata, with the pair caught up in a row off the ball.

Rudiger is never one to back away with a challenge - as seen from his exchange with Sergio Ramos against Sevilla earlier this season - and wasn't about to do so again.

He firstly grabbed the Spanish striker by the arm, and then by his nipple - before twisting it.

The best part of the incident, though, was Rudiger's incessant laughing at Morata as he turned towards him in fury.

Morata's reaction was to simply turn around in pure horror before staring into Rudiger's soul.

You can see the exchange below.

The Germany international defender did go unpunished for the incident and, perhaps surprisingly, the only yellow card shown in the entirety of the contest was to Diaz for his celebration of what proved to be the final goal of the contest.

Whatever happens, you can never call Real Madrid vs Atletico Madrid dull.