Alejandro Garnacho appeared to ruthlessly mock Pedri after Man United's win over Barcelona

Alejandro Garnacho appeared to ruthlessly mock Pedri following Manchester United's huge win over Barcelona in the Europa League.

Man United knocked Barca out of the competition to reach the last 16 after winning Thursday's clash at Old Trafford 2-1 (4-3 on aggregate).

Fred cancelled out Robert Lewandowski's first-half penalty, with second-half substitute Antony grabbing his side's winner after finding the back of the net in the 73rd minute.

Antony tucked the ball past Marc-Andre ter Stegen after Garnacho and Fred had their respective efforts blocked in a frantic moment.

Garnacho looked lively when he came off the bench to replace Jadon Sancho in the 67th minute and seemed to poke fun at Pedri following the result.

The 18-year-old has been pictured doing Pedri's signature celebration as he used his hands to form a pair of glasses.

It didn't go unnoticed by fans as Man United fans loved the budding superstar's savagery.

One Twitter user wrote: "Bro really looking for youngsters that are better than him."

A second tweeted: "Oh it's gonna be awkward if he accepts Spain's national team call."

A third added: "All this lad needs is to be clinical and he'll be unstoppable. He has guts."

A fourth commented: "Garnacho owns Varcelona."

A fifth said: "Looking for them in the round of 16."

Garnacho, who's close to agreeing a bumper new deal at Man United, will be hoping for more game time when his side face Newcastle United in the Carabao Cup final on Sunday.

Speaking after beating Barca, Erik ten Hag said his team have the potential to beat 'all the good teams' and hailed the belief in the camp.

"When you can beat Barcelona, one of the best teams at this moment in Europe then your belief can be really strong then you are able to beat anyone," he said.

"When you [as Barca] are eight points ahead of Real Madrid in La Liga and you beat Real Madrid in the Super Cup 1-3 and we have seen Real Madrid playing against Liverpool this week [winning 5-2] and you beat a really good opponent, we have the potential to beat all good teams."