MillersMAD understands that Rotherham have had a six figure bid accepted for the Frenchman, believed to be in the initial region of £350,000, but a host of other sides are also chasing his signature.
Other media sources are also touting Dicko for a move to a number of clubs, with his contract expiring with Wigan this summer.
Bristol City are believed to be the Millers main rivals to capture the forward, but Bournemouth, Millwall, Peterborough and Bradford have all been mentioned as showing an interest.
The 21 year-old scored 6 times in his recent loan spell at the New York Stadium and it is hoped that he will choose to return to the club where he enjoyed success.