Off the back of a frustrating stalemate with Liverpool in the Premier League on Thursday night, Arsenal returned to winning ways with a 4-1 win over Portsmouth in the FA Cup.
A hattrick from Gabriel Martinelli and yet another own goal saw the Gunners come from behind to progress into the next round and keep Mikel Arteta's side's hopes of all four trophies alive this season.
An early shock from a Colby Bishop strike seemed to shake some life into the league leaders, who responded swiftly to equalise in the 8th minute, before settling down and showing their quality to dominate the rest of the match.
Here are four things we learnt from a chilly afternoon on the South coast.
A First Senior Hattrick for Martinelli
Gabriel Martinelli, who has been much talked about since the Liverpool clash due to his actions to an injured Conor Bradley, came up with his first career hattrick, leading from the front to carry the Gunners past a resolute Portsmouth side and claim the match ball.
The Brazilian benefitted from the home side's Achilles heel of defending set pieces, by getting on the end of two Noni Madueke corners to score Arsenal's second and fourth goals.
They came either side of a swift Arsenal move, starting with Myles Lewis-Skelly, who's quick thinking from a freekick set Gabriel Jesus on his way down the right wing, before the latter delivered an inch perfect driven cross to give Martinelli the simple task of applying the final touch.
Ethan Nwaneri's Performance Underlines Why he Deserves More Minutes
In a heavily rotated starting 11 that saw only Gabriel Magalhaes keep his place from Thursday's Premier League action, Ethan Nwaneri was given a chance alongside Eberechi Eze in the Gunners' midfield.
The teenager did show some signs of rust, in what was only his fifth start of the season in all competitions, misplacing a few passes, however it was largely a positive display.
Nwaneri showed his ball carrying ability, receiving the ball on the half turn from his defenders on numerous occasions, and driving through the heart of the Portsmouth team, demonstrating to his manager why he must not be forgotten about as the fixtures start to come thick and fast.
Kai Havertz' Return Provides Arteta with Another Option in Attack
Arsenal fans would have been delighted to see **Kai Havertz**make his return to first team action for the first time since picking up a knee injury at Old Trafford in the opening game of the season.
The big German played the final 20 minutes as the number nine, and although not the most heavily involved, showed glimpses of what he is capable of in terms of his link up play.
Mikel Arteta now has three centre forward options at his disposal, with Jesus also returning from injury last month, and with Viktor Gyokeres struggling in front of goal, Havertz could find himself as first choice striker once he returns to full fitness.
Myles Lewis-Skelly Struggles
Off the back of such a successful, breakout season for the young fullback, Lewis-Skelly has seen his minutes reduced this campaign with Ricardo Calafiori enjoying a rich vein of form before his injury, and Piero Hincapie being favoured to replace the Italian at left back.
However, with the Ecuadorian going off injured in the Gunners' previous match, Lewis-Skelly now has an opportunity to show his worth, and he was granted a full 90 minutes in today's encounter.
Having struggled against Liverpool, the 19-year-old seemed slightly off the pace once again, giving away some sloppy fouls and coming off second best in duels. Arteta and the Arsenal fans will hope that their homegrown talent will find his form of last season in the coming matches.