The 33-year-old was carried off on a stretcher during last night's 1-0 FA Cup third-round replay win at Newcastle.

Manager Phil Brown told the Hull Daily Mail: "It looks like it could be the medial ligament, the extent of which we're not sure about, but we're possibly looking at two or three months.

"It's a big blow to lose someone with George's experience."

Former Holland international Boateng has made 18 first-team appearances for the Tigers since his £1million move from Middlesbrough last summer.