Xavi backing Barcelona bid for Celtic keeper Forster
Forster, who is also interesting AC Milan, is being linked with Barca as they seek a successor for wantaway Valdes.
"I think the players all know about the Forster interest - and it is a player we know very well," said Xavi.
"I can't say that I watch him every week - but when we have played Celtic he has shown that he is a world-class goalkeeper.
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