Kanu capitalised in style to hand the Baggies victory with a goal in each half at the Hawthorns.
The first goal actually came from our throw and ended with Anthony Gardner's fine tackle on Diomansy Kamara deflecting off the unlucky Michael Carrick into the path of Kanu, who finished well.
Anthony Gardner - in for the injured Ledley King - then saw his pass intercepted by the same player eight minutes into the second half and this time Kanu shifted the ball past Michael Dawson in the box before firing home.
We ended the game with Jermain Defoe, Mido and Robbie Keane all on the pitch but failed to seriously test home keeper Tomasz Kuszczak.
I think West Brom were the better side in the first 35 minutes and Kanu gave us a few problems but I don't think it was decisive
"The only decisive situations occurred when we gave away the ball and they took advantage.
"They had maybe another two half-chances but I can't remember Paul Robinson making any great saves.
"We've come back six times this season and said at half-time that we had to do the same again.
"But we then gave away the second goal. It's not typical for my team, but when we gave away that goal we lost the game. That is disappointing but I don't think we deserved a lot.
"In the second half we did okay and it's only a matter of scoring one goal, we might come away with a draw and it's no problem. But as I said, if you give away a cheap goal like the second goal it's very difficult."
Martin Jol was left to rue defensive mistakes but conceded we deserved little from West Brom after our 2-0 loss on Wednesday night.