Roberto Martinez has admitted he is an admirer of out-of-contract Swansea midfielder Leon Britton.
The 27-year-old will officially become a free agent at the end of June when his deal with the Swans expires.
Britton's agent has revealed he does have a number of options, including a couple in the Premier League, and Wigan have been credited with an interest.
Martinez worked with Britton during his time in charge at the Liberty Stadium and is fully aware of the player's contract situation.
"In my eyes he is a player who has probably been one of the best central midfielders in the Championship over the last two years and he is someone who I know really well," said the Latics manager.
"I worked with him for a few seasons and I played with him, so he is someone I really know well.
"Obviously, I know he is out of contract, he has had a few offers and I am sure it is the most important decision of his football career.
"It is something where I am not too sure what is going to happen."
Martinez has already begun strengthening his squad ahead of the new season and will keep his eyes open for other possible new recruits when he jets out to the World Cup to work as a pundit.
"I'm going to the World Cup and we are going to see a few players," he said.
"I think it is important that you sign the right characters and the right personalities.
"Anyone can spot a good player, but it is all the other ingredients that allows you to be successful for Wigan Athletic.
"It is a large list in terms of names and it will carry on in that way until we make a signing.
"So far we have signed Steven Gohouri on a permanent basis and Antolin Alcaraz, the Paraguayan centre-half, and our fans will always be the first to find out as soon as we get new signings."