 Birmingham signed Upson for �1m from Arsenal in January 2003 |
Birmingham chairman David Gold says the club may struggle to hold on to Matthew Upson in the January transfer window. Upson, 27, was linked with a move to Liverpool before he ruptured an Achilles tendon in April.
The defender is set to return in November and Gold said: "If he plays well, clubs will show an interest and it will be difficult to hold on to him.
"But it depends who comes in for him. If it's someone like Liverpool, it's tough to tell the player he can't go."
He added: "That is what we found when Jermaine Pennant left Birmingham for Liverpool.
"But if it is a Bolton or a Wigan, we can tell Matthew that we can be as good as they are.
"For now, though, what a player Upson is for us to have waiting in the wings. He is a top player and we obviously want all our best players fit again."
Upson joined Birmingham from Arsenal in the January 2003 transfer window.