Wigan Athletic boss admits Palmer interest
However, Sheridan was the Oldham manager during that time, and the chance to reunite with his old manager - rather than his old club - could prove decisive.
"I like him, I've asked about him," revealed the Wigan boss.
"He did really well for me at Oldham, I've always really liked him as a player.
"We made an enquiry to Swindon, and if he was available - and financially it suited us - we'd be interested."
Earlier this week, Swindon manager Richie Wells admitted the player was leaving to a move to the Wigan Latics rather than the Oldham branch.
"We have had a couple of offers from Oldham for Matty Palmer," said Wellens.
"But he would rather go to Wigan."
There is also a strong Wigan link in the Swindon management team, with Noel Hunt assistant manager and Paul Jewell director of football.