Entering the field of play when you’re not supposed to is generally frowned upon — even more so when you stop an almost-certain goal from being scored.
A player in Iran did just that, and it actually kind of worked out for him. He was sent off, but his team kept all 11 players on the pitch, and their opponents didn’t score the ensuing direct kick. Win-win.
But honestly, the biggest question we have after watching that is why the sub didn’t just save it with his hands. It’s not like he wasn’t going to be caught.