Watch key moments from League Two defeat
Leyton Orient leapfrogged Pompey in the League Two table with a 1-0 victory at a blustery Fratton Park.Jobi McAnuff scored the only goal on 53 minutes, with a stunning long-range effort that flew into the top corner.
Kevin Nolan, Jay Simpson and Armand Gnanduillet also went close for the visitors, who carved out the game's best chances.
The Blues did not have much joy at the other end, although Alex Cisak did well to deny Marc McNulty before the interval.
Watch the key moments from the game below or subscribe to Pompey PlayerHD for extended highlights.