Edy Reja has called Joseph Minala, the youth team player who hit headlines around the world, for Lazio’s game with Cagliari.
It kicks off on Sunday at 14.00 GMT, click here for a match preview.
Minala’s photographs went viral last month when people all over the globe debated as to his real age.
The player and club insist paperwork shows he is 17 years old, but some sources even suggested he was 41.
Minala has impressed for the Lazio Primavera youth team and now receives his first call-up to the senior squad.
Antonio Candreva will be in the stands due to suspension.
Lazio squad for Cagliari: Marchetti, Berisha, Strakosha; Biava, Konko, Radu, Ciani, Novaretti, Pereirinha, Cavanda; Ledesma, Onazi, Mauri, Lulic, Gonzalez, Biglia, Felipe Anderson, Minala; Klose, Keita, Kakuta, Lombardi