Lionel Messi continued his rich goal scoring form in the La Liga as he found the back of the net on four ocassions in Barcelona's 6-1 routing of Eibar on Tuesday.
Paulinho and Denis Suarez also netted for the second consecutive game as Barca stretched their lead at the top of La Liga to seven points over Real Madrid, who host Real Betis on Wednesday.
"That Messi scored four goals now isn't news," said Barca boss Ernesto Valverde after the Argentine's 43rd career hat-trick. "He has done it so many nights, in so many games. To keep repeating it is the most difficult thing.
"He is an extraordinary player. I have run out of words for him." Messi played in a more central role as Valverde heavily rotated his side for the first time since taking charge with Luis Suarez dropping to the bench among six changes from Saturday's hard-fought 2-1 win at Getafe.
And contrary to their fortunes last season, Barca's back-ups proved Valverde can take the luxury of resting some of his star names with Paulinho particularly impressive on his first start.
Messi opened the scoring in nonchalant fashion from the penalty spot on 21 minutes after Nelson Semedo had been felled by an ungainly challenge from Alejandro Galvez.
Paulinho's 40-million-euro ($48 million) signing from Chinese side Guangzhou Evergrande was one of a series of moves that drew stinging criticism for Barca's board following Neymar's world-record departure for Paris Saint-Germain.
However, after coming off the bench to score the winner at Getafe, Paulinho powered home his second Barca goal from Denis Suarez's corner seven minutes before half-time.
Paulinho also played his part in Barca's third with a cute dummy that freed Messi and, when his shot was parried by Marko Dmitrovic, Denis Suarez fired home the rebound. Sergi Enrich reduced the arrears when he capitalised on some sloppy Barca defending to slot home David Junca's cross.