The 19-year-old spent a large portion of the past two seasons on loan at Nyewood Lane, netting 20 times in 71 games, although injuries hampered his progress in 2019/20, he still managed to bag 7 goals in 28 matches before lockdown.

Lethbridge, who signed third-year scholarship terms at Fratton Park last summer, made 3 appearances for Pompey, scoring in a 2-2 Leasing.com Trophy draw at Oxford United in October 2019.