Lionel Andres Messi guided Barcelona to an eighth La Liga title in 11 seasons on Saturday as he scored the only goal in a 1-0 home win against Levante.
La Liga’s leading goal scorer struck his 34th goal of the campaign after coming off the bench in the second half to wrap up the title for Barca with three games remaining.
The Catalans hold a nine-point lead over second-placed Atletico Madrid, and they cannot be overtaken, thanks to a superior head-to-head record.
It is Barca's 26th league title and nudges them closer to Real Madrid's record of 33 in Spain.
“To win the title with a distance and gap is difficult with the rivals we have. We’ve done it two years in a row.”Ernesto Valverde, Barcelona Manager
He further added, "We're happy and to see people enjoying it makes us proud. But we still have challenges ahead."
Valverde initially left Messi on the bench with Wednesday’s Champions League semi-final first leg against Liverpool in mind, but he replaced Philippe Coutinho at the break at Camp Nou.
Coutinho and Luis Suarez pressed Levante goalkeeper, Aitor Fernandez into action early on, the Brazilian coming closest to breaking the deadlock when his free-kick rattled the crossbar shortly before half-time.
He was subbed with Messi though, and it proved an inspired decision as the Argentine swept in the winner on 62 minutes following a frantic scramble inside the Levante area.
The visitors, not yet safe from the threat of relegation, responded and put Barca defence under pressure but were denied an equaliser in the last minutes when the ball hit the post and rolled into the grateful arms of Marc-Andre ter Stegen.
"In the end he scored the goal. He always scores goals everywhere," Valverde said of Messi, who celebrated winning his 10th league crown.
Atletico Madrid had delayed Barca’s title party earlier in the day as they scraped past strugglers Real Valladolid 1-0 after surviving late VAR penalty drama.
Joaquin Fernandez's own goal put Atletico ahead midway through the second half, but they had to endure a nervy final few minutes in which Jan Oblak had to be at his best and they survived a late VAR check over what looked like a clear Santiago Arias handball in the area.
"It's controversial, a ball that hits the hand and the referee's decision is to see if it's voluntary or not," said Saul Niguez, whose cross led to their fortunate winner.
Diego Simeone's side are nine points ahead of local rivals and reigning European champions Real Madrid, who travel to Rayo Vallecano on Sunday amid increasing speculation they will respond to a disappointing season by swooping for Eden Hazard and Neymar.
"It's what we deserve, no more, no less. We've come so far," added Saul.
He also added, "There were moments when we wanted to be first and others that I would say no, that's what we deserve." Valladolid meanwhile stay 17th, just one point and a place away from the relegation zone after a match they will feel they were unlucky to lose.
Earlier on Saturday, Athletic Bilbao and Alaves did their chances of European football next season no favours with a 1-1 draw in the Basque Country.
Seventh-placed Bilbao are five points away from a Champions league spot with Alaves a further three points back and Valencia and Sevilla may take the Europa league spot further away from the former when they take on Eibar and Girona.
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