Graham Salisbury has been appointed as the referee for Leyton Orient's play-off semi-final first leg at Peterborough United on Saturday.

Salisbury's only previous Orient game this season came in the 0-0 draw at Notts County in March. The referee took charge of Peterborough's 2-0 home win over Exeter in the FA Cup in November. 

Adam Crysell and Lee Swabey will be the linesmen this weekend while Andrew Madley is the fourth official.