Was rotation the reason?
Many Tottenham fans blamed the constant rotation of players by manager Mauricio Pochettino for the team's exit.
Pochettino retained just two players who started last week's League Cup semi-final win over Sheffield United.
But the manager refused to concede. He said: "This (rotation) is our way since the beginning of our season, and I do not think this is a reason to justify the result.
"During the game, we played well, but you need to kill the game.
"We created chances, but also gave Leicester the chance to be alive. We are out of the FA Cup and, for that, I am very disappointed." - PA Sport.