New Barcelona coach Ronald Koeman warned that any players who lack commitment or professionalism will be shown the door as he vowed to lead the team back to glory after last week’s 8-2 humiliation in the Champions League by Bayern Munich.

“What we need to do is give a different image to what we gave against Bayern, that’s not the Barca we or the fans want to see,” Koeman said at his presentation on Wednesday after signing a two-year deal with Barca.

“You have to be very happy wear the Barca shirt. You have to show that with commitment, professionalism, with everything you have inside. If we do that, the image will be totally different to what it was last week.”

Koeman left his role as Netherlands coach to take charge of Barca, who he helped win a first European Cup in 1992 during a golden six-year spell in Johan Cruyff’s so-called ‘Dream Team’.

The Dutchman said that Barca was his home, although he admitted it was not an easy time to return to the club, who are reeling from their first trophy-less campaign in 12 years.