Posh won with a second - half header from substitute Greig Shepherd following a volleyed cross from Francis Cassidy .
They played the final 20 minutes with left - back Martin Pike in goal after John Turner broke his leg in a collision with Andy Ritchie .
Posh won with a second - half header from substitute Greig Shepherd following a volleyed cross from Francis Cassidy , but they played the final 20 minutes with left - back Martin Pike in goal after John Turner broke his leg in a collision with Andy Ritchie .