Kanu scored his third goal in six Barclays Premier League appearances in the 1-0 win at Blackburn to give Pompey their first away victory since Boxing Day.
Dismissing suggestions he would have been happy to offload the striker during the summer, manager Harry Redknapp said: "I always wanted to keep him, but he was looking at two years (on his contract). So I said he could have a year and if he played 20 games, I saw that as a fair deal for him."
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