Rafael Benitez has warned Milan Baros he may be about to make him ineligible for any other club in European football this season.
The Liverpool manager is considering using Baros - the subject of a summer of transfer speculation - in the first leg of their Champions League third qualifying round tie against CSKA Sofia.
With the prospect of a move to Lyon or Monaco on the cards, many felt this was just a case of Benitez bluffing to get the £7million price he wants for the Czech star.
But Benitez said on the eve of the match: "I hope Milan is ready, the last game he played was the friendly against Olympiakos and he played well and scored two goals. He is playing well and I have talked with him.
"But he is a good professional and you must not forget that when we signed (Fernando) Morientes last season he could not play in the Champions League.
"If you want a player you know he can play 40 games and maybe there are 10 Champions League games and it is not so important that he plays in every game."
If Baros plays against the Bulgarians, he will not be able to play for any other club in a UEFA competition this season.
But Benitez insists that Baros is available for selection and in the right frame of mind to play if called upon.
He said: "Milan is our player and I would have no problem in playing him. When he has played previously this summer he has done very well.
"I have talked with him about the situation as it stands at this moment and he fully understands.
"We also have Djibril Cisse and Morientes to use so there may be no reason to call on Milan. But if I have to then I know he will not let this club down."
Asked by the Bulgarian media about where he thought Michael Owen might be playing his football next season, Benitez joked: "I am not sure, but he definitely won't be playing for us against CSKA!"
Various board members, approached about claims that they have persuaded Benitez to try to re-sign Owen, all insisted the suggestion was nonsense.
Liverpool and Benitez have to concentrate on this vital, and difficult, tie before any talk of further transfers in or out of Anfield.
They have scored 22 goals in seven matches so far this pre-season and defender John Arne Riise spoke for the rest of the team by insisting everyone is confident.
He said: "We know a lot about CSKA now and know they are a strong team, a good team, so it is going to be tough but we are high on confidence that we can get some goals and win.
"We might be favourites but we still have to win the game. I don't think it matters that much having the second leg at Anfield but of course it is always good to finish a tie at home in front of our own supporters.
"We hope to get a good result in Bulgaria and bring them back to Anfield and finish off the tie. It will be a tough couple of games but we are very confident we can get through.
"There have been some important games during the pre-season and we have scored a lot of goals and kept some clean sheets as well which is good for the confidence.
"I think the main thing is we are scoring goals. It helps if more players score goals and Steven Gerrard has scored a lot of goals already so it's looking good for us."
Liverpool arrived here with Benitez still fuming over the refusal of the Government to grant Chilean winger Mark Gonzalez a work permit.
Liverpool are still considering their options, but may now wait until the next transfer window before making another appeal. But Gonzalez is still confident he will become a Liverpool player.
He said: "I know that sooner or later I will be playing at Liverpool. I am sure this will be resolved. I am staying calm about this. It was something we feared."