Sanchez laughs as Gunners get blown away

Footage has emerged of Arsenal star Alexis Sanchez appearing to laugh at his own team's misfortune against Bayern Munich.

The Chilean looked as though he was trying to stifle laughter after compatriot Arturo Vidal had given Bayern a 5-1 lead in the second leg of their Champions League round of 16 tie.

Sanchez was sitting next to goalkeeper Petr Cech on the bench at the time, with the pair appearing to find the funny side in their team's utter humiliation.

The chastening display saw Arsenal bundled out at the round of 16 stage for the seventh successive year after a 10-2 aggregate score.

Not surprisingly, the forward's reaction earned the ire of fans on social media.

The incident compounded a miserable night for Arsenal fans who staged a mass-protest against the club before kick-off in London.

About 200 Gunners supporters held a march calling for Arsene Wenger to leave the club.

Fans organised the march from the club's former Highbury home to outside of Emirates Stadium where protesters held aloft banners calling for Wenger to go.

Supporters urged the club not to offer the 67-year-old a new contract, with his current deal expiring in the summer.

As well as anti-Wenger sentiment, there were plenty of chants aimed at the board as well.

"We want Wenger out," was the most popular chorus among the disgruntled numbers, while chief executive Ivan Gazidis was also targeted with chants of "Ivan, do your job".

The march ended on the steps of the 60,000-capacity stadium which will be part of Wenger's legacy at Arsenal following a reign of over 20 years.