Former Celtic striker Sutton has given his take on the Hoops’ failure to complete deals for their two reported targets on transfer deadline day.
“A few names were mentioned with Steven Fletcher and Michu two reported targets who didn’t fancy loan moves to Parkhead,” the 42-year-old wrote in The Daily Record.
“These two decent but hardly world-class players are turning Celtic down and it tells us it’s financial or the club doesn’t have the appeal on the pitch.
“It’s one or the other but also it’s fair to question the two players’ attitude if they would rather play Under-21s football than at a club of Celtic’s stature.”
Fletcher and Michu are decent strikers, but neither of them would have been guaranteed a place in the Celtic starting line-up.
While Fletcher may continue to turn out for Scotland, he has struggled for goals in the Premier League for Sunderland.
As for Michu, the 29-year-old former Rayo Vallecano star has been struggling to even remain at Swansea following a strong debut season.
The Spaniard played on loan for Italian club Napoli last season, but he could make just three appearances in Serie A.