The new Fenerbahçe signings are no strangers to each other having trained and played in the same team for a few seasons at United.
Nani won four Premier League titles, the Champions League and the World Club Cup whilst at United last season.
Van Persie was part of the United side that won the record 20th league title while donning the number 20 shirt.
Both former United stars have been included in the 24 man squad for Fenerbahçe ahead of the Champions League preliminary play-off clash against Shakhtar Donetsk at the end of the month.
Goalkeeper: Volkan Demirel, Fabiano, Erten Ersu
Defence: Gökhan Gönül, Caner Erkin, Michal Kadlec, Hasan Ali Kaldırım,
Hakan Çinemre, Bruno Alves, Abdoulaye Ba, Şener Özbayraklı, Simon Kjaer
Midfield: Josef De Souza, Raul Meireles, Mehmet Topal, Diego, Alper, Uygar Mert Zeybek, Stoch, Nani, Mehmet Topuz
Forward: Sow, Fernandao, Robin van Persie