Alexis Mac Allister has urged Liverpool to sign Tottenham's Cristian Romero. Mac Allister is currently away on international duty with Argentina, with Romero one of his team-mates with La Albiceleste. Together, the duo have helped their country win two successive Copa Americas and the 2022 World Cup. Mac Allister has also starred in Liverpool's Premier League title win, while Romero helped Tottenham to lift the Europa League . That ended a 17-year trophy drought for Spurs, who are set to undergo major changes this summer. The man who led them to winning the Europa League, Ange Postecoglou, has been sacked. Brentford boss Thomas Frank is expected to replace the Australian. Meanwhile, Liverpool are also embarking on a busy summer window, with Arne Slot keen to ensure his side retain their place at the top of English football. They have already been active in the transfer market, with Jeremie Frimpong having arrived while Florian Wirtz and Milos Kerkez are expected to join him. And Mac Allister has now urged a fourth move, singling out Romero. In an eyebrow-raising endorsement, Mac Allister also revealed that he rates the 27-year-old as being the best defender in the world . Such a rating would place him higher than Liverpool captain Virgil van Dijk. Mac Allister said after Argentina's draw with Colombia on Tuesday night: “Oh, Cuti [Romero]. He’s a player I love. The way he speaks and plays. "Sometimes you feel like he’s too much because he makes everything so easy. He gives me confidence. For me, he’s been the best centre-back in the world for several years.” Aside from winning the Europa League, it was a miserable season for Spurs, who finished 17th in the Premier League table. That led to suggestions that Romero could move on in the summer window. But after lifting the Europa League trophy, booking their place in next season's Champions League , Romero appeared to hint that he is happy with life in the capital city. In a post on social media, he wrote: “We achieved what we wanted this season as a group, and that's what matters. And….My name is part of the history of this beautiful club. “I want to thank you all for the love and support every day despite everything, but I have no doubt that staying together led us to success. We must continue, this is the path. "We are the champions of Europe. As a family from start to finish, we deserved this title. No one trusted us and here we are, closing a great season. Thank you all for the love." Join our new WhatsApp community and receive your daily dose of Mirror Football content. We also treat our community members to special offers, promotions, and adverts from us and our partners. If you don't like our community, you can check out any time you like. If you're curious, you can read our Privacy Notice.