According to the Daily Mail, United have agreed personal terms with the 22-year-old and a deal worth £17 million is in the offing.
Thiago is thought of as the natural heir to Xavi at Camp Nou, but has seemingly grown frustrated with his lack of first-team opportunities at Barca.
His stock rose still higher with a supreme showing in the European Under-21 Championships final with Spain.
I was invited to comment on Thiago's suitability for United in a clip for FullTimeDevils, a new independent YouTube channel for the club's fans.
Watch the clip above and leave your comments below.