England's Theo Walcott starred as Arsenal came from 4-0 down to win at Reading
claimed the match ball on Tuesday night after Arsenal's dramatic 7-5 League Cup victory over Reading.
In an unbelievable night at the Madejski, Arsenal were 4-0 down as the game moved into first half stoppage time when Walcott pulled one back.
Strikes from Olivier Giroud and Laurent Koscielny in the second half took Arsenal within a goal of the Royals.
And a last-minute equaliser from Walcott appeared to have crossed the line, Carl Jenkinson made sure tucking home the loose ball.
Marouane Chamakh looked to have sealed the win in extra-time, though Pavel Pogrebnyak did give Reading hope at 5-5.
Walcott then netted a late sixth for Arsene Wenger's side before Chamakh wrapped up the win to send Arsenal into the last eight.
But the England forward admitted he might not have actually bagged a hat-trick in the Gunners' amazing comeback.
"It was an unbelievable game. I'm absolutely knackered now," Walcott told Sky Sports.
"We've scored seven goals away from home - it was great going forward. Maybe defensively it wasn't great at times, but we're in the draw and that's what matters."
He added: "I'd love to have goal-line technology to get the hat-trick but if they've not given it, then well done Carl!"
"I'll have to give the ball back to the referee!"
Wenger was delighted with his team's response, and had a special word for Walcott: "He did very well tonight, I know he's a great player.
"Many players did well, but Theo scored goals and was efficient."
"You cannot play for Arsenal and give up. They responded very well and showed they are at the right place."