Messi performances in 2014 had been drawing criticism, so his Blaugrana teammate was delighted by the 26-year-old's response at the Ramon Sanchez Pizjuan.
The Argentine had gone through a barren run in La Liga, but Iniesta says the 26-year-old attacker will always respond to criticism. Iniesta was delighted by the way the four-time Ballon d'Or winner inspired Barca to a come-from-behind victory that propelled the Catalans back to the top of the table.
"Messi always responds. He never misses and in just a few minutes he can change a game. He’s a fundamental player," the Spain international is quoted as saying by his club's official website. "When you have a chance you have to take advantage of it. I think this victory will give us strength ahead of the match on Wednesday [against Real Sociedad in the Copa del Rey] and for the games to come after that. We will fight until the end. The important thing is to not lose a lot of points and to improve as a team."
Barcelona can book its place in the Copa del Rey final when it travels to San Sebastian to face Sociedad on Wednesday, having won 2-0 in the first leg at Camp Nou last week.