Barca had Gerard Pique sent off halfway through the first half and were reduced to nine men deep into stoppage-time, when Rafael Marquez saw red for bringing down Kepa Blanco, which led to the award of a penalty for the visitors.

Guardiola said criticism of referees is pointless.

"We shouldn't always doubt the referees - we need to enjoy this wonderful league and spend less time talking about referees," he said.

Guardiola refused to discuss any of the decisions, but said referees can be expected to make mistakes.

"It's not worth talking about it - they make mistakes and get things right like everybody else," he added.

The former Barca captain praised his side's ability to win in adverse circumstances.

"I am very proud," he said. "Getafe are the worst team to play against with 10 men, but we took a step forward and my players behaved marvellously.

"It is one of the best days we have had, one of the games with most merit."

Guardiola also defended misfiring striker Zlatan Ibrahimovic, who has failed to score in his last five league matches.

"He was scandalously good tonight," the Barcelona coach said.

The win came at a cost for Guardiola as he will be without four key players for next weekend's trip to Atletico Madrid.

Pique and Marquez will be suspended, while their fellow defender Dani Alves was a late withdrawal from the team after he felt a pain in his calf during the warm-up. The Brazilian is facing a three-week lay-off.

Midfielder Yaya Toure, who played in defence following Pique's early dismissal, limped off with a leg injury and is likely to be sidelined for 10-15 days.

Getafe coach Michel claimed his side lacked an edge on the night.

"We had the ball, but we didn't perform up front and that is really worrying," said Michel.

"We are struggling to score goals and we lacked bite."

Getafe played for almost three quarters of the match with an extra man, but failed to make their numerical advantage count.

The Madrid-based side pulled a goal back from the penalty spot at the death, but missed several good opportunities before that.

Michel believes his team need to use the width of the pitch to best exploit their attacking qualities.

"We need to make better use of the wings and pressure our rivals more," he said.