Manchester City manager Pep Guardiola labelled the match ball used in the EFL Cup as ‘unacceptable’ after his side reached the quarter-finals.

City, so dominant in the Premier League this season, were unable to find a breakthrough against Wolves on Tuesday, needing penalty shoot-out heroics from Claudio Bravo to progress after a 0-0 draw.

Guardiola was unhappy with the Mitre match ball, which is usually used in Football League matches.

‘It is not acceptable. The ball was unacceptable for a high-level competition,’ the Spaniard said.

‘It is too light, it moves all over the place, it is not a good ball. It is impossible to score with a ball like that and I can say that because we won, I’m not making excuses.

‘All of my players said, “What is that?” I’m sorry [but the] Carabao Cup is not a serious ball for a serious competition.

‘It’s [for] marketing, money, OK but it’s not acceptable – [it has] no weight, nothing.’

Bravo made saves from Alfred N’Diaye and Conor Coady in the shoot-out, sealing a 4-1 win on penalties for City.

-This story originally appeared on FourFourTwo.co.za