Lionel Messi has called for major changes at Barcelona after they conceded the La Liga title to Real Madrid on Thursday evening.

While Real Madrid battled their way to a 2-1 victory over Villarreal, Barcelona suffered a surprise reverse by the same scoreline against Osasuna at Camp Nou.

After his club's latest setback, Messi described Barcelona as "a weak team", suggesting that significant changes should be made both on and off the pitch over the coming months.

In a television interview, the Argentine said: "We didn't expect to finish in this way, but it sums up the year for us.

"We are a weak team who can be beaten with enough intensity and enthusiasm. We have lost a lot of points which we shouldn't have done. We have been very inconsistent.

"We need to be self-critical, starting with the players, but also across the entire club. We are Barcelona, and we are obliged to win every game."

With less than a year remaining on his contract, Messi has been linked with a transfer away from Barcelona at the end of next season, effectively putting the pressure on high-profile figures behind the scenes to deliver on the 33-year-old's requests.