The likes of Manchester City, Fulham, Liverpool, Tottenham and Arsenal are amongst the Premier League sides to be linked - whilst even La Liga giants Real Madrid and Barcelona are thought to be keen.
And Di Matteo admits he 'can't compete' for players like Moses.
"We are more distant about that particular player [Moses]," Di Matteo told Sky Sports News. "We are still working behind the scenes to figure out which player could help us in next three months.
"We can't compete with other people so we leave it up to other people, but that is not only us - a lot of clubs have limits, but some don't and they can do what they want."
Newcastle v Crystal Palace 1st Goalscorer: Moses, V. 8/1
Source: Team Talk
Source: Team Talk