Del Alli scoed Tottenham's decisive second goal from the penalty spot against Southampton on Sunday and later admitted seeing the goal shrink before he took the spot-kick.
With regular penalty taker Harry Kane out of action due to injury, Alli admitted there was no pre-match discussion as to who would take a penalty if they were awarded one saying: "As soon as I realised H wasn’t on the pitch I saw it as an opportunity to get another goal so I grabbed the ball!," he told Spurs TV.
"We didn’t really speak before the game about who might take it so it was first come, first served. I was confident to take it and the boys let me have it but more importantly, we got the win.
"I was confident. I know the goalkeeper well from England, he’s a great keeper but I knew he would go that way so it was important to put it in. Once I put the ball down I looked back up and realised ‘I thought the goal was much bigger’ but it was important I sent him the wrong way and I was happy to see it go in.”
Today's win, in numbers... #COYS pic.twitter.com/bAxLDD5Rr4
— Tottenham Hotspur (@SpursOfficial) March 19, 2017
The win keeps Spurs in second place but still 10 points behind leaders Chelsea.