Ibrox side Glasgow Rangers are new favourites to sign one of Mark Warburton's old boys.
The Gers are thought to be in the market for another centre-forward this summer ahead of their Scottish Premiership return, with a 36-year-old Kenny Miller representing Martyn Waghorn's only competition for the number nine shirt.
And according to the popular bookmakers, the man to challenge Waghorn could be the 25-year-old, who netted 25 League One goals for the Latics last season - and 28 from 43 games in all competitions.
Sky Bet have slashed Rangers' odds regarding a swoop for the Northern Irishman, with Grigg now just 6/4 to join the Ibrox side after being as long as 8/1 just three days ago.
Hull City, who were 11/10 favourites last week, are now 4/1, while Rangers' bitter Old Firm rivals Celtic are now 6/1, having been 5/1 in the last update.
Rangers boss Mark Warburton knows precisely what the player is capable of, having managed him at Brentford for two years.
Celtic's odds may suggest that they are realistic candidates, but manager Brendan Rodgers has a proven 40-goal striker in Leigh Griffiths, and has only just signed French sensation Moussa Dembele from Fulham.