Marc-Andre ter Stegen is one of the the finest goalkeepers in world football right now.

The German shot-stopper is arguably Barcelona's second most-important player these days behind the talismanic Lionel Messi, regularly bailing the Blaugrana out of sticky situations.

There is an argument from many that Ter Stegen should be Germany's number one these days ahead of Manuel Neuer, such has been his form for Barca the past few years.

The 27-year-old's trophy haul with the club is also mighty impressive. He has won four La Liga titles, four Copa del Reys and the Champions League in 2014/15.

However, the halcyon days of Xavi, Andres Iniesta, Dani Alves and more seem an eternity away right now, with Barca struggling for form under Quique Setien.

Reports have surfaced in the aftermath of Sunday's El Clasico - which Barcelona lost 2-0 to Real Madrid - of player dismay at Setien's coaching style.

According to Club de la Mitjanit, Ter Stegen has become so disillusioned with the 'lack of training the squad does' that he is actually considering his future at the club.

The German reportedly told a colleague that he doesn't know whether he will be in Catalonia come next season.

Other players have also raised concerns about Setien's ability as manager and there is a feeling among the squad that the job is too big for the ex-Real Betis boss.

It's official: Barca are an absolute mess right now.

Ter Stegen and Messi are voicing their concerns, key players are picking up injuries left, right and centre and performances out on the pitch continue to worsen.

The only small crumb of solace Barca fans can take regarding the situation with Ter Stegen was an interview conducted with the German by Mundo Deportivo on February 24.

He told the publication: "My intention is to continue at Barca."

But opinions can change in a short space of time in football and the Barca soap opera has produced a number of unexpected twists since that interview.

More food for though for club president, Josep Maria Bartomeu.