FC Barcelona captain Lionel Messi needs to join Real Madrid in order to be considered as the best ever, according to former Argentina international Hugo Gatti.
Messi has won 34 major titles with Barcelona, including the UEFA Champions League four times while netting a staggering 703 goals for club and country.
The 32-year-old has also been nominated for the 2019 Ballon d'Or after securing a record sixth Golden Shoe award for his exploits in the Blaugrana's LaLiga triumph in the 2018/19 season.
However, Gatti feels his compatriot needs to replicate his success elsewhere, in the manner that Cristiano Ronaldo has, with Manchester United, Real and now Juventus.
"It seems as if I am anti-Argentine, but until Messi plays in the big games, he will continue to be a player of home games," Gatti told the El Chiringuito de Jugones.
"He has to have balls to go to Real Madrid and prove everything there like Cristiano [Ronaldo did]. Otherwise, he will be just one more [player].
"Cristiano went to the best club in the world. Messi plays at home, on his pitch with everything [that comes with that in terms of home comforts].
"Let him play in the Champions League and the World Cup, otherwise he will always be one more. When he plays there, he will fight with [Johan] Cruyff, [Diego] Maradona and Pele.
"Messi plays when they let him play. It's very easy to play with everything in your favour at home."