Manchester City boss Pep Guardiola has declared Barcelona star Lionel Messi as untouchable.
Guardiola admits he loved working with Messi while Barca coach.
He said on Christian Vieri's Twitch stream: “He's very strong, the strongest.
"Beyond his quality, there is his mentality, his head.
"In four years at Barcelona, we have played a lot in training and we haven't lost a single one. If he had lost, he would have left. He has this competitive mentality, there are four or five players in history who have something different."
