Heerenveen coach Gertjan Verbeek insists reported Middlesbrough target Afonso Alves has played his last game for the club.
Striker Alves has been vying for a transfer for the past few weeks and Verbeek is fed up with the disruption he feels it has caused his team.
'The book is closed. From the moment that he said that he wanted to leave Heerenveen, the story is over,' Verbeek told AD Sportwereld.
'That he hasn't signed a contract yet at AZ or another club? That doesn't interest me. I only work with guys who have their heart and soul at Heerenveen and that is not the fact with Alves.
'He is not ready for it either, physically and mentally.
'Maybe I can put him in the line-up for four games, but I don't even dream of doing that. I don't want to be the victim of his unpredictable behaviour.
'That only leads the club into confusion.'
Alves was top scorer in the Eredivisie last season with 34 goals and was Heerenveen's record signing when they bought him from Malmo in 2006 for 4.5million euros (£3.5m).
But the 26-year-old has been linked with a move away from the club for some time now with Middlesbrough reportedly set to bid £13.5million for the Brazilian ace.