Largely thanks to teenage striker Eddie Nketiah, Arsenal came from behind at the Emirates to beat Norwich City 2-1 in the Carabao Cup on Tuesday night.
The 18-year-old forward - released by Chelsea in 2015 due to his lack of height - was brought on in the 85th minute and scored with his first touch within 15 seconds.
Nketiah later scored the winner in extra-time to save Arsene Wenger's blushes.
Following Sunday's 5-2 win over Swansea, the Gunners lie 5th in the Premier League table and host Swansea City on Saturday afternoon.
The England U19 striker, who has made two starts in the Europa League this season, will be hopeful of making his first Premier League squad.
“I knew he had quality," said Wenger following the game. "But when the team need you and you deliver, that’s another quality you don’t know about until you go on to the pitch."
A number of key first team players - including Alexis Sanchez, Mesut Ozil, Alexandre Lacazette and Aaron Ramsey - were completely left out the squad.
Wenger has a long history of resting big names in the League Cup but fans were far from happy about his decision to captain the club's longest serving player.
Theo Walcott made captain
The 28-year-old English winger was made captain in Per Mertesacker, Laurent Koscielny and Petr Cech's absence.
Walcott joined the club from Southampton in 2006 but is still yet to convince huge numbers of the Emirates home support of his worth.
He produced a disappointing display against Norwich and, despite his experience, looks a long way from breaking back into the first team.
Walcott is yet to make a Premier League start this season and - with Olivier Giroud and Jack Wilshere in the first XI - fans were appalled at Wenger's decision to hand him the captain's armband.
Playing on the right flank, Walcott was caught offside on numerous occasions but managed to last the full 120 minutes.
He's started on the bench in each of Arsenal's nine Premier League fixtures but fans would surely love to see Nketiah involved instead of him.
Walcott is still hopeful of breaking into England's 2018 World Cup squad.
“When given the chance, I need to take it,” Walcott told the Evening Standard last week. “That is the only chance I have to get back into the England squad.
“It’s down to hard work. I know my qualities, how good I am. I have got so much experience under my belt, there is no reason why I can’t prove people wrong and get back in that squad.”