The Leeds United striker is now wanted by two League One clubs.
Wigan, who were coached by current Leeds boss Uwe Rosler across 2013 and 2014, were relegated to League One at the end of last season, and are keen to strengtehn ahead of the start of the season.
Winning promotion back to the Championship is imperative, and signing Sharp - a goal scorer proven at Championship and League One level - would be a real sign of their intent.
Sheffield United, who are also looking to get back into the second division following their faltering in the play-offs during 2014/15, recently appointed Nigel Adkins as manager, and he has been linked with making a move for Sharp.
The duo worked together at Scunthorpe, Southampton and Reading, with the Yorkshire Evening Post carrying quotes from Adkins, confirming that he admires the striker. Whilst not confirming interest in a transfer, if Sharp was on the market, there is no denying that Adkins would be at the front of the queue for his signature.
Now Wigan have entered the race for his signature, but there remains no indication as to a fee that would have to be paid to Leeds for them to accept a potential transfer.