Milla, who was Thiago's coach with the Spain under-21 side, reckons the former Bayern Munich midfielder can achieve great things will Liverpool after his long-awaited transfer to Anfield was finally completed.
"They have players of such a high quality both physically and mentally, that run and dominate games, and Thiago will fit in with that philosophy perfectly.
“Liverpool have grown so much, and want to win everything, but to make this signing is a huge statement of intent.
"He's now a world-class central midfielder. He will, of course, have to adapt to the quality of the Premier League but he is definitely capable of doing so.
"I think ultimately he will end up dictating the pace of Liverpool's play, the rhythm of the game, and that's why they have signed him."