Roma face Inter at home at the Stadio Olimpico on Sunday.
“I’m hoping to play because I feel ready,” Juan told La Gazzetta dello Sport.
“Ibrahimovic is a great footballer. Everybody knows how good he is, but I’m fit and prepared to face him.
“I’m back and I just want to give my contribution to the side. I’m happy in Rome but now I need to start playing regularly and to put in good performances, starting on Sunday.
“We have a heated rivalry with the Nerazzurri and this battle is always eagerly anticipated in the capital.
“A true sportsman would say ‘may the better team win’, but I’m not neutral so I just hope Roma win.”