Lionel Messi came off the bench to move Barcelona to within two points of clinching the Primera Division title with a 4-2 win over Real Betis at Camp Nou on Sunday.
Dorlan Pabon and Ruben Perez had twice given the visitors the lead in the first-half either side of Alexis Sanchez's equaliser.
However, after David Villa had once again levelled the scores, it was unsurprisingly left to Messi to decide matters as within three minutes of coming on he fired in a wonderful free-kick and then was on hand to tap home at the end of a flowing move involving Sanchez and Andres Iniesta.
Following their humiliating 3-0 defeat at the hands of Bayern Munich in the Champions League in midweek, that sealed a record 7-0 aggregate defeat, Barca started in the worst possible fashion.
A goal kick from Jose Manuel Pinto was headed back towards the Barca goal by Jorge Molina and avoided everyone on its way through to Pabon who finished confidently into Pinto's right-hand corner.
The lead only lasted six minutes as Iniesta turned wonderfully on the left and delivered a tantalising ball into the middle which Sanchez bulleted home with his head to register his sixth league goal of the season.
Molina then headed just wide as Betis broke dangerously, but Barca went onto dominate for large periods of the first-half and would have been well in front but for some poor finishing from Villa.
Spain's all-time record goalscorer inexplicably blazed over from six yards after being teed up perfectly by Iniesta and Xavi on 23 minutes.
And five minutes later Villa passed up another great opportunity as this time Cristian Tello sped to the byline and cut the ball back only for Villa to place his side-footed effort too close to Adrian.
Tello was then desperately unlucky as he cut in from the left and rocketed a shot that came off the underside off the bar that didn't quite fully cross the line on its way back out.
However, Betis were back in front two minutes before half-time as Perez found the top corner with a glorious strike from fully 30 yards.
The game was turned on its head again within 15 minutes of the restart though as Villa finally got his name on the scoresheet as he took advantage of incredibly slack Betis defending to head home Dani Alves' cross before being replaced by Messi.
And it took the World Player of the Year just three minutes to make his mark on the game with a sumptuous free-kick that curled into Adrian's top left-hand corner.
That goal ensured Messi continued his streak of scoring in 21 consecutive league games and he so nearly repeated the trick with another free-kick that struck the bar nine minutes later.
But the Argentine soon did have his second of the evening thanks an outrageously good Barca move as an Iniesta backheel released Sanchez and he laid the ball back across goal for Messi to roll into an empty net.