Harry Maguire was berated by Man Utd team-mate Andre Onana on Sunday (Picture: Getty)

Lisandro Martinez has told new Manchester United goalkeeper Andre Onana to keep slamming his defenders after an incident involving Harry Maguire.

Onana launched a furious rant at the English centre-back during United’s friendly defeat to Borussia Dortmund on Sunday.

The summer signing from Inter Milan berated former captain Maguire for a sloppy pass to Christian Eriksen – which led to a Dortmund chance – and Onana subsequently forced into making a save.

Onana dismissed any issues between him and Maguire in the aftermath and fellow defender Martinez feels the Cameroonian’s passion will only help the side.

‘It’s better for [it],’ Martinez said. ‘If you are focused, you can fight with your team-mates as well.

‘You need to make sure everyone is really sharp, but nothing happened. It’s part of football.

‘He has a big personality, he can play football, he can deal with the pressure, he’s really positive, he’s a leader. That’s the style of Manchester United.’

More: Trending

Quizzed about Erik ten Hag’s decision to strip Maguire of the United captaincy this summer, Martinez added: ‘It’s the coach’s decision and we need to respect it. He’s the boss.

‘If he takes the decision, as a player we need to keep going. Bruno [Fernandes] is a good leader and a good person as well. He’s really positive in the dressing room and I think he deserves it.’

Maguire, meanwhile, has been linked with a move to fellow Premier League side West Ham this summer.

MORE : Harry Maguire’s stance on West Ham move revealed as Man Utd set their asking price

MORE : Man Utd respond as West Ham launch offer for Harry Maguire amid salary issues

‘You need to make sure everyone is really sharp…’