The caretaker is eagerly anticipating Wednesday's trip to Stamford Bridge, as he believes his players have been presented with a great chance to announce their return to Europe
The Serie A champions have picked up from where they left off last season, with three wins from three games, and the interim boss wants his team to make full use of their opportunity against the competition holders.
"We are really proud to have the opportunity to face the champions of this competition," Carrera said at a press conference. "Of course it's a big test for us and we have to work and improve.
"But we are really happy that we can play these sort of games. We have spoken to the players and they know what they should and shouldn't do for tomorrow's game.
"We are conscious of what we need to do; these sort of games can give you a better understanding of where you are as a team."
Juventus last featured in the Champions League in 2009-10, when they failed to survive the group stage.