West Ham defender Matthew Upson admits he may have to be sold in the January transfer window.
The 30-year-old centre half is reportedly a target for London rivals Tottenham, while the likes of Liverpool, Aston Villa and Manchester City have also been linked with a bid for his services.
With the Hammers mired in a relegation dogfight in the Premier League, the sale of one of their star players would be a body blow to their survival hopes.
Former Birmingham City owners David Gold and David Sullivan have reportedly tabled a £50million bid for the club, although if a deal does not go through before the transfer window then the team's prized assets may be sold to ease financial worries.
England international Upson admits the situation is out of his control, although insists he is focused on the Hammers' next game.
"It's a difficult question because there are so many things out of my control and things that may happen," he told the London Evening Standard.
"All I can focus on is the next game, getting myself right and being in the best form I can to pick up points for West Ham."
Chelsea were held at Upton Park on Sunday in a 1-1 draw after a penalty apiece from Alessandro Diamanti and Frank Lampard.
Upson praised his team's resilience against the league leaders although he knows they must push on now and play the same way for the rest of the season.
"We came out with a good attitude, a resilient game plan and applied it," he added. "But it can't stop here.
"We have to have that attitude every game. If we achieve that, we'll pick up some points.
"As players we can't focus on results, we need to worry about performances. If we do and have no fear, not thinking about winning or losing, the result will take of itself.
"We have to work on that consistency. We need that spirit and that attitude and if we have that it will carry us a long way."