West Ham striker Demba ba allegedly refused to sign an autograph for a supporter, after which trouble broke out.

据称西汉姆前锋巴拒绝为某球迷签名，导致了扰乱的爆发。

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Meanwhile, with Sturridge's departure confirmed, Chelsea stepped up its bid to lure Newcastle striker Demba Ba to London.

CNN: Chelsea striker Sturridge joins Liverpool

The Upton Park side, who are bottom of the Premier League, signed forward Demba Ba from Hoffenheim on Friday.

BBC: West Ham confirm loan deal for Tottenham's Robbie Keane

West Ham have also recruited defender Wayne Bridge, midfielder Gary O'Neil and striker Demba Ba during the January transfer window.

BBC: West Ham confirm loan deal for Tottenham's Robbie Keane