Hoping to follow in the footsteps of Wrexham and Macclesfield by causing another seismic shock in football’s oldest competition, Portsmouth broke the deadlock after just three minutes when Colby Bishop pounced on Kepa Arrizabalaga’s weak save to score the fifth FA Cup goal of his career. However, the hosts’ lead only lasted five minutes as Arsenal’s set-piece prowess came to the fore once again, although Christian Norgaard was denied what he thought was a first goal for the club as Portsmouth's Dozzell was adjudged to have bundled Eberechi Eze’s corner into his own net.
The record 14-time FA Cup winners eventually went in front from another corner - this time Noni Madueke’s in-swinger was headed home by Martinelli, who bounced back from the criticism he received in Thursday’s Premier League draw with Liverpool after shoving the stricken Conor Bradley.
Pushing to open up a two-goal buffer before half-time, Martinelli hit the post when it looked easier to score, before Madueke won the visitors a penalty after drawing a foul from former Arsenal youth player Zak Swanson. However, the winger was far too casual with his stuttered run-up, curling the ball past the post after initially sending Portsmouth goalkeeper Josef Bursik the wrong way.
Looking to call upon the spirit which has seen them lose just one of their last five games in England’s second tier, Portsmouth came close to making it 2-2 when Conor Chaplin found himself free at the back post, but his driven effort was well blocked by Arsenal defender Ben White. And that missed opportunity soon proved costly for John Mousinho’s side as some clever thinking from Myles Lewis-Skelly saw the left-back slip a quick free-kick into the path of Gabriel Jesus, whose stunning, low cross was converted at the far post by Martinelli after 53 minutes.
Aiming to stave off the threat of a late comeback from Portsmouth, Arsenal boss Mikel Arteta soon brought on experienced duo Jurrien Timber and Martin Odegaard, while Kai Havertz also made a first appearance since suffering a serious injury at the start of the season. And the north Londoners soon made it a hat-trick of goals from corners as Madueke and Martinelli combined once again - the latter heading home for his third of the afternoon with just 18 minutes of normal time left to play.
GOAL rates Arsenal's players from Fratton Park...






