Avram Grant has renewed his attack on Lens by claiming the French club are jeopardising their chances of selling Aruna Dindane by denying the striker the chance to play out the season with Portsmouth.
Dindane has become a regular in attack for the club since he arrived on a season-long loan from the French side in August. He won the penalty which Kevin-Prince Boateng scored to book Pompey's place in next month's FA Cup final, but the 29-year-old looks unlikely to play for Portsmouth again.
If Dindane plays once more he will trigger a clause in his loan contract which will require Pompey to pay £4 million to his parent club.
Portsmouth, who went into administration in February, cannot afford to pay the fee and Lens appear unwilling to back down in the row despite pleas from the club's administrator Andrew Andronikou.
Blackburn boss Sam Allardyce recently revealed he would be interested in signing the player this summer and other clubs have been linked with former Anderlecht striker.
Grant believes Lens' refusal to allow Portsmouth to put the striker in the shop window will reduce the likelihood of the Ligue 1 side offloading the striker at the end of the season.
''I don't know what is happening with Dindane at the moment because I'm not dealing with Lens directly,'' said the Israeli following yesterday's 2-1 defeat to Aston Villa. ''I have said it before and I will say it again though, they need to resolve it.
''If they want to sell Dindane then they will make it easier by allowing him to reproduce the kind of performance that he showed in the semi-final against Spurs. I don't understand it but this is their problem. A contract is a contract but I don't understand why they are doing this.''
Dindane recently spoke of his dismay at the situation and is understood to be desperate to play for Pompey again, particularly in the FA Cup final, which will take place on May 15 at Wembley.
Portsmouth's semi-final with Tottenham was overshadowed by the poor Wembley surface, which caused Michael Dawson to slip and let in Frederic Piquionne to set Grant's side on their way to a shock 2-0 victory.
Grant welcomed the Football Association's decision to re-lay the much-criticised pitch yesterday ahead of his side's big game at Wembley. ''The pitch is not good at the moment,'' said the former Chelsea boss. Wembley is Wembley. Everything is good except the pitch so they have needed to fix it.''