It's been a frustrating start to the season for Lionel Messi.Injury problems have plagued the Argentine superstar and limited his first-team appearances.However, he made a surprise return in midweek as he started in Barca's 2-1 victory over Inter Milan in the Champions League.Even though he was half-fit, he produced a sensational assist for Luis Suarez's winner.And now he's off the mark for the campaign.

Barca were 3-0 up against Sevilla at the Camp Nou when Messi stood over a free-kick with 10 minutes remaining.

And you just knew what was going to happen...

He clipped the ball effortlessly over the wall and into the back of the net for his first goal of the season.

Take a look:

While Barca eased to an easy win, they didn't have things all their own way.

With a few minutes remaining, Ronald Araujo was shown a straight red card for his last-man foul.

Then, Ousmane Dembele was dismissed for protesting the decision.

Messi is once again doing his thing on the pitch but, this weekend, a bizarre story emerged concerning the five-time Ballon d'Or winner and Brexit.

Messi may struggle to travel to England once the UK leave the EU. In an interview with The Athletic, Immigration lawyer Andrew Osbourne of firm Lewis Silkin, said: “There is a specific point around European games. If you are an EU citizen with a criminal conviction, you can travel to the UK, as long as you are not deemed to be a threat to national security.

"If you are not an EU citizen and have a conviction or prison sentence imposed - even if suspended - you are banned from coming to the UK.

"There are a number of very famous footballers with convictions and suspended sentences for tax evasion. They, thus far, have not had to worry as they have EU passports.

"But post-Brexit, they potentially may not be able to enter the country (as they will be treated like non-EU nationals).

"Anyone with a prison sentence of any sort, the starting point is you are not allowed in.

"This could provide disruption to Champions League squads and also whether they (UEFA) will play finals in England if players potentially may not be able to come in.

"Clubs will need to take steps.”

Messi was convicted of tax fraud in Spain and received a 21-month suspended prison sentence, meaning his entry into England may prove problematic after Brexit.