The England midfielder was sent off for Spurs in the Europa League against Gent last month when hacking down Brecht Dejaegere at Wembley.
Luckily for Alli, the Belgian was uninjured which the Spurs youngster is grateful for having seen Wales defender Neil Taylor badly beak the leg of Republic of Ireland captain Seamus Coleman on Friday night.
"It was a horrible moment for me; something I've learned from straight away," Alli said.
"I felt horrible after the game and I'm just grateful that nothing happened to him [Dejaegere].
"It's a shame to hear players getting injured like that. I feel sorry for Seamus and I wish him a speedy recovery. Like I say, I'm sure the guy [Taylor] didn't mean to do that. He definitely wouldn't have meant to injure the player.
"Like my tackle; I felt I was relieved that nothing bad happened to the player. I didn't go in to hurt the player, I went in for the ball but sometimes it can look a lot worse than what happened in your head."