0-3 up now. Omar Beckles own goal. 51 minutes. Gavin Whyte crosses from the right and Omar Beckles tries to clear, but only succeeds in sending the ball looping into his own net.
Pompey happy to pass the ball about and one nice move ends with a low Gavin Whyte drive tipped around the post by Howes. 65 minutes.
Leyton Orient subs: Max Sanders, Charlie Pegrum and Ed Turns for George Moncur, Joe Pigott and Jayden Sweeney. 69 minutes.
Howes makes a mess of dealing with Joe Rafferty's cross and Jack Sparkes fires it back across goal, with Colby Bishop not quite able to get on the end of it. 76 minutes.
Penalty to Pompey! 90 + 2 minutes. Marlon Pack heads the ball towards Kusini Yengi, who's tugged to the ground by Omar Beckles and the referee waits before pointing to the spot.
Leyton Orient 0 Pompey 4 (Kusini Yengi (pen)) Kusini Yengi calmly sends Howes the wrong way from the spot.
Final whistle. 0-4 away win to Pompey. Two goals in each half settled the match. 4th goal of the season for the brilliant prospect Kusini Yengi in two matches plus one as substitute !!