Wigan are thought to have made a bid in the region of £4million for the striker, who enjoyed a superb debut season in the Premier League last term, scoring 15 goals to help the Baggies stay up.
Spurs are also keen on the Nigerian and he has admitted he would be open to a move away from the Premier League if one of the big boys came in for him.
Speaking on Twitter, the 30-year-old said: “To my dear WBA supporters. I love this club and will leave only to a TOP team which is understandable. Nothing abnormal is going on.
“Contract is not signed cos of the duration of it (sic). Figures agreed long time ago cos I know this is not Real Madrid. Please be patient.”
Chesterfield boss Jack Lester felt his side were unlucky not to claim all three points after their 1-1 draw at Cheltenham.
New Swindon manager Phil Brown revelled in his side's victory at Cambridge in his first game in charge.
Graham Westley believed his side 'disintegrated' in the second half of their 2-0 loss against Wycombe.
Port Vale manager Neil Aspin praised his side's 'fighting spirit' after they came back from two goals down to draw 2-2 with Stevenage at Vale Park.
Garry Monk had every reason to have a wide smile on his face after guiding Birmingham to a vital 3-0 Championship home win over below-par Hull.
Lee Johnson was delighted for Milan Djuric after the striker's 64th minute goal boosted Bristol City's Sky Bet Championship play-off bid.
Sheffield United manager Chris Wilder was left frustrated with his team's quality in the final third after they drew 0-0 against Nottingham Forest.
Mark Robins praised his players resilience as Coventry's game management counted in a hard-fought victory at Crewe.