Former Celtic star Tom Boyd has urged Gary Hooper to resist a return to England.
Hooper has also been linked with Hull City and - at an even lower level - Championship outfit Reading..
Boyd told the Scottish Sun: "There's no comparison between the clubs. The Champions League is far, far better than the English Premier League..
"You get a lot of decent games in there, whereas I watched a lot of Premier League game last year and even the top teams in that were pretty poor."