Manchester United defender Lisandro Martinez has said he is constantly having to control his aggression towards his opponents in order to avoid picking up suspensions.

Martinez has impressed at Old Trafford since his summer move from Ajax, winning plaudits especially for his combative style.

The 25-year-old puts his aggression down to his upbringing in Argentina and said it is something he is always trying to rein in.

"It is hard, it is really hard," Martinez said in an interview at United Carrington training base ahead of Sunday's Carabao Cup final against Newcastle United.

"Sometimes I want to kill but you have to control as well. I can do it otherwise I will be suspended every game. You have to be clever."

Martinez, alongside Raphael Varane at centre-back, has been key to United's resurgence under head coach Erik ten Hag this season.