Wigan have completed the signing of former Wolves midfielder David Jones on a free transfer.
Jones had been on trial with the Latics having left Wolves when his contract expired at the end of last season.
"I'm delighted to have sorted out my future," the 26-year-old told the club's official website.
"Roberto Martinez is a great manager to work for and I've loved every minute of training so far," he added. "I already feel settled here."
Jones, who started his career at Manchester United before joining Derby in 2007, featured in Sunday's friendly victory over Preston, a club where he played on loan in the 2005/06 season.
Wigan boss Martinez said: "Dave has connected well with the group during pre-season.
"He has a great attitude towards work and will certainly bring something different to the team.
"We've been impressed with the levels of his work in training and everyone's excited to be welcoming him to our club."