The striker scored a last-gasp header to secure all three points for his side.
The striker was the hero of the hour in Sunday’s 2-1 win, scoring a last gasp header to secure all three points for his side in the title clash.
It was a big moment for Arsenal, and an even bigger one for Welbeck, who hadn’t featured for the side since April of last year when he picked up a long-term injury.
He nearly missed out on his chance to be the hero though, with Wenger revealing it was a late decision to include him in his line-up for the clash with the Foxes.
“On Friday morning I was not convinced that I would include him in the squad, because I planned to play him next week," he told Arsenal.com.
"I was going to give him one more week training, but his last two training sessions were so convincing that I decided to include him.
"It paid off today, and we are all very pleased for him."
Arsenal will now be hoping that Welbeck can keep himself fit until the end of the season and hopefully chip in with some goals along the way.
They could certainly do with someone contributing; with the pressure to get the goals they need to keep their title hopes alive having been firmly on the shoulder of Olivier Giroud all season long.
Welbeck coming in and adding a few goals would certainly be a welcome addition then, especially if they can be as crucial as the one against Leicester City proved to be.