And Manchester United insiders have told sportinastorm.com that it wasn't to watch France striker Antoine Greizmann, who snubbed a move to the Theatre of Dreams earlier this summer by remaining loyal to Diego Simeone's team.
It's understood United manager Jose Mourinho, while still hopeful of resurrecting a deal for Griezmann, had instructed his network to scout a midfielder on show at Rome's Olympic stadium, as the match ended in a disappointing 0-0 stalemate.
United handed Michael Carrick a 12-month deal earlier this summer but Mourinho is believed to be already planning for life without the 35-year-old veteran.
The Portuguese is a well-known admirer of Roma's Radja Nainggolan, having previously looked at the Belgium international when he was in charge at Chelsea.
Mourinho was also linked back in January to Atletico's 22-year-old starlet Saul Niguez, who intriguingly, has since signed an incredible nine-year deal with a buyout clause of £90m.