It is being reported on the West Brom official website that an undisclosed bid from the Latics for 15 goal striker Peter Odemwingie has been rejected 'out of hand'.
The Latics are believed to be testing the water for the 29 year old forward who has two years to run on his present deal.
Talks over his new deal with Albion have stalled and it is believed that Roy Hodgson's signing of Shane Long is indicative of Odemwingie's likely departure.
West Brom Sporting and technical directors, Dan Ashworth is quoted as saying: "This summer, we have made it our No.1 priority to keep our core players - like Peter - and strengthen the squad around them as we endeavour to firmly establish this club in the Barclays Premier League.
"Peter enjoyed a fantastic first season with us and is a firm favourite with the supporters, with whom he enjoys a great relationship.
"We have no intention of selling Peter and we are a little bit disappointed that Wigan have tabled this offer.
"We spoke to Wigan beforehand and made it clear Peter was not for sale, but they still proceeded to lodge a bid - which has been flatly rejected.
"We are in discussions with Peter over a new-and-improved deal to reward him for his efforts last season and we are very hopeful these talks will reach a successful conclusion."
At the present time there is no comment from Wigan Athletic regarding the bid or any future improved offers for the striker.
Given Martinez's reluctance to sign older, established players the move comes as a surprise, although Odemwingie's goals would be a welcome addition at the DW Stadium.
Following the departure of Charles N'Zogbia, along with Daniel de Ridder and Jason Koumas, there is room on the Wigan wage bill for two big players, believed to be Odemwingie, and Manchester City winger Shaun Wright-Phillips.
