Wayne Rooney has moved to defend Lisandro Martinez and believes Manchester United need to change to get the best out of him.
United signed Martinez in a £53.5million move from Ajax earlier in the summer as Erik ten Hag looked to improve his defensive options.
But it's been a baptism of fire for the Argentine, who has struggled at times in the opening defeats to Brighton and Brentford.
Martinez has also come in for ridicule for his height as at 5ft 9in he isn't as tall as a typical Premier League centre-back.
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