The ex-Argentina and Spurs star believes the No.10 is the one who tips the scale in the Catalan side's favour ahead of Wednesday's European clash
Tottenham would be the heavy favourites to win their Champions League match against Barcelona on Wednesday if they had Lionel Messi in their ranks, Osvaldo Ardiles says.
The London side host the Spanish champions on Wednesday as Mauricio Pochettino's men look to recover from their 2-1 defeat to Inter in the first week of the European competition.
With the likes of Messi, Luis Suarez and Ousmane Dembele paying a visit, Spurs are gearing up for a massive challenge, but their form has picked up since going down in Milan, having won their last two Premier League games.