Hassan, 26, was named Asian Footballer of the Year in 2018 following his excellent performances for the Qatari side.
And he now coached by Barcelona legend Xavi Hernandez, who is trying to convince Hassan to sign a new deal.
The 96-time Qatar international has been with Al Sadd since 2010, but his contract is now up.
And according to TMW, the talented full-back is ready for a new experience in Europe.
Udinese are most interested in Hassan, viewing him as a cheap and high quality player in a time when clubs must spend carefully.
However, there could be competition from Turkey and Spain with Trabzonspor and Betis also keen.