Newcastle United boss Alan Pardew admits Mike Williamson could decide tonight's clash with Birmingham City.
Williamson will be needed to mark Nikola Zigic out of the game.
Pardew said: "We had a similar problem at Blackburn with Christopher Samba. Samba is 6ft 5in and very, very strong physically at set-plays.
"Zigic is the same, but Mike Williamson will be tagged to look after him and I have no doubts.
"Mike is very, very strong himself."
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