Newspaper reports this morning claimed Sinclair had joined Newcastle for £6m.

But both the player and his manager say they know nothing of the deal - although Roeder revealed details of a conversation he had with his opposite number at St James’ Park, Bobby Robson, on Tuesday.

‘‘I’m very disappointed that it has come out in the manner that it has, and you never know how these stories slip out,’’ said Roeder.

‘‘But you have to ask the question about the club concerned, and maybe they felt it was in their interest to let something like this slip.

‘‘If Newcastle have, I’m really disappointed with the club, especially as it is a club I have a lot of affinity for, having played up there for six years.

‘‘What is particularly annoying is that on Tuesday morning I put in a call to Bobby Robson and spoke to him on another football matter that didn’t concern players at either club I was seeking some advice off him.

‘‘And at the end of the conversation Bobby’s actual words were: ‘I see that we were linked with Trevor Sinclair over the weekend; is Trevor available?’

‘‘I categorically said: ‘he is not available, Bobby, he is a player that we want at the club and an integral part of our team, and he is definitely not for sale’.’’

Roeder told West Ham’s official website, www.whufc.co.uk: ‘‘I assume he accepted what I said.

‘‘It was particularly disappointing to receive an offer for Trevor at lunchtime on Tuesday and, when we replied back to them and said he is not available at any price, we stated in the fax back to them we would appreciate if this doesn’t become public.

‘‘That is because it is very unsettling not only for Trevor but our supporters, who I want to reassure that Trevor Sinclair is not going to Newcastle or anywhere else.’’

Roeder said he would be speaking to Robson again today to try and ‘‘put the record straight’’.

‘‘If Newcastle have leaked this I am particularly disappointed with them but I assume no-one up there will admit to leaking it and will blame anyone but themselves.

‘‘It’s not just us that have had these problems; Arsene Wenger has had the problems with Patrick Vieira and Manchester United.

‘‘And, to an extent, I suppose Newcastle United have had them with other clubs as far as Kieron Dyer is concerned.

‘‘I will do the decent thing and try to contact Bobby Robson myself today just to put the record straight and see how he sees things.’’

The player was equally surprised to hear the reports, but said he was more than happy to remain at West Ham.

‘‘To be honest I don’t know anything about it,’’ said Sinclair, 28.

‘‘At the end of the day I’m just getting on with my work; I can’t let things like that interfere with my training to get the fitness back, which is important that I stay focused on.

‘‘I’m definitely happy at West Ham and looking forward to the first game on Friday. I’m not leaving unless I’m told I’m being sold, which I haven’t been.’’

Roeder added: ‘‘It is very annoying. I can only state again that Trevor Sinclair nor any of our players are going anywhere.

‘‘As I said when I was appointed, we have done our selling and unless I particularly want to sell a player no-one is leaving and Trevor is not a player I am interested in selling at any price.

‘‘I had a good chat with Trevor yesterday, and he is still very ambitious.

‘‘We have got three players that are in the England squad and I’d like to think Trevor can become the fourth one.’’