Tottenham defender Cristian Romero believes Lisandro Martinez is one of the two best centre-backs in the Premier League.
Romero, 24, is regarded as one of the best defenders in the competition after completing a solid debut season with Tottenham. The 11-cap Argentina international helped Antonio Conte's side break back into the Premier League's top four after two seasons away.
Martinez, also 24, remains a slightly unknown quantity to the Premier League following his £57million move from Ajax to Manchester United. Romero's national teammate has done well in his six appearances in the competition, helping United win four of those games.