The Brazilian midfielder completed his medical yesterday and will complete his transfer, once his work-permit been granted.
The 25-year-old has posted a classy heart-felt message to all the Manchester United fans, before vowing to give his cent per cent effort for his new employers.
“Thank you Manchester United for all you gave to me. It was a pleasure and a proud to be part of this tremendous club. I will never forget my great colleagues and friends, all the amazing people that work in the club and obviously the fantastic supporters, always on my side. Love you all and you always be in my heart.”
“Wish you all the best because we always be together United family! Now I have to leave because I really need to play. Thank you Fiorentina for this opportunity and for believe me. You won’t regretbecause you trust me 100% and I will give you 100% of dedication, professionalism and quality. Together we will be happy.”
Anderson was signed by Sir Alex Ferguson in 2007 for a reported fee of £20m from Porto and has made 177 appearances in all competitions.
In other news, Manchester United manager David Moyes has insisted that he has not had a falling-out with Wilfried Zaha. He will allow Zaha to leave on loan but only when regular starters Ashley Young and Nani are fit.