Posh have deliberately built a young squad for the League One campaign and while the first-choice starting XI looks strong, what happens when injuries or suspensions strike?
Here are the current second choice Posh performers for each position in a 4-2-1-3 formation, although there are now suggestions a couple of them could be gone before the August transfer window closes.
5. CHARLIE O'CONNELL
Centre-back Charlie O’Connell (20): FL Apps 1. Also played in a couple of senior cup matches. Stylish defender. Photo: Joe Dent
6. JEANDO FUCHS
Midfielder Jeando Fuchs (25). FL Apps 79: The midfielder is on the transfer list, but the signs are Posh are relaxed about keeping him. Tough-tackler who is easily up to League One standard and would complement the passing skills of Archie Collins and Hector Kyprianou. Photo: Joe Dent
7. RYAN DE HAVILLAND
Midfielder Ryan De Havilland (22). FL Apps 0. Summer signing from Barnet who will definitely play League One games. He's two-footed and a set-piece specialist. Photo: Joe Dent
8. KAI CORBETT
Forward Kai Corbett (20): FL apps 1. West Ham Academy graduate who is improving rapidly. He's versatile enough to cover all four of the Posh forward positions. Photo: Joe Dent