Bayern Munich coach Pep Guardiola feels Messi's current form cannot be haulted

Barcelona's ace striker Lionel Messi is unstoppable on current form believes Bayern Munich coach Pep Guardiola.

Speaking before Bayern Munich takes on Barcelona for the first time in their Champions League semi-final on Wednesday, Guardiola said he did not have a formula to stop the four-time World Player of the Year, who has scored 51 goals in 50 games this season.

He was quoted by Sport24, as saying that there is no defence that can stop Messi.

Messi also praised Guardiola, saying he deserved a hero's welcome for the 15 years of service he had given the club both as a player and a coach.

Both Guardiola and Messi have won 14 trophies together.