Fenerbahçe released a statement on their official website confirming the news and also announced that the signing ceremony will be open to the public.
The Portuguese international will be unveiled on the stadium pitch and the stands will be open to the fans. Nani will then move to the press room to take questions from reporters.
Nani arrived at the Sabiha Gökçen airport in Istanbul on a private jet yesterday and was greeted by over 1000 Yellow Canaries supporters upon arrival.
The 28-year-old winger passed his medical today at the Liv Hospital in Ulus in Istanbul.
The four-time Premier League champion is expected to sign a four-year deal worth €3.975 million, according to a close Turkish-football.com source.
Nani also won the Champions League and World Club Cup during his time at United.