TMW says the goalkeeper is highly rated at Parkhead, having turned professional back in 2019.
At just 17, he's made his way through the youth ranks and is on the brink of cracking into the senior set-up, though any game time is seemingly far away.
Regardless, he apparently has his sights set on a move away from Celtic Park.
His current deal will expire at the end of the season, reports suggest, and it has been claimed numerous teams are circling him.
Along with United and Everton, there are apparently three teams in Italy who are targeting him.