The Italian is the favourite to take the Villa Park post.
Glasgow Rangers boss Mark Warburton is looking to add a big signing to his squad at Ibrox.
Liverpool were beaten by Sevilla in the Europa League final on Wednesday.
The former Champions League-winning boss has been touted as the favourite to become Xia's first managerial appointment.
Michael Owen has made a bold claim about Europa League runners-up Liverpool.
Scouts from the West London club reportedly watched the Legia Warsaw winger last weekend.
Damien Comolli is reportedly unaware of any interest from Aston Villa in his services.
The Newcastle United star credits the Spanish boss with reviving his England career but admitted his own next move is some way off being decided.
The Bournemouth striker was the subject of a bid from West ham United earlier this week and has also been linked with Tottenham Hotspur.
Southampton are also fearing that both Victor Wanyama and Graziano Pelle could leave St. Mary's.