Arsenal have been linked with a shock move to sign Tottenham Hotspur captain Cristian Romero. Credit: Getty Images/Julian FinneyLionel Messi once called Arsenal target Cristian Romero ‘the best defender in the world’Messi is the greatest footballer of all time. MORE ARSENAL STORIESIf there ever is a good judge of an elite defender, it’s him, and he thinks very highly of Arsenal target Cristian Romero. Credit: Getty Images/ElsaMikel Arteta will have to change one thing about Cristian Romero if Arsenal sign himIf we’re being completely honest, we don’t want Arsenal to sign Romero this summer. Mikel Arteta’s biggest task if Arsenal sign Romero would be to change that.