There were some doubts over whether he would put pen to paper, especially amid interest from Inter, but last night Marchisio officially signed until June 30, 2016.
"It is a very important day for me and I dedicate it to my family. My story with Juventus started in 1993 and I'm happy it'll continue for a long time," said the midfielder.
"Much has been said about this contract renewal over the past few months, but both the club and I never acted as if this rapport could break off.
"My biggest dream is to lift a trophy as soon as possible, something I also want to do for our fans, who have always stood by us during difficult times."