Ronaldo grabbed four in the 6-2 demolition of Sevilla on Saturday to take his season's tally to 31, two more than Messi with two games left.

"Messi is always looking to score because he is a born striker and it's in his blood," said Guardiola, whose Argentine superstar failed to hit the target in Sunday's 2-0 win over local rivals Espanyol.

"In the first half he was fantastic. It was one of his best performances this season where he created a number of goal scoring chances. He is here to win titles and is clearly our most dangerous player."