The two sides meet in the Champions League on Tuesday.
The reigning Champions League holders travel to the Emirates on Tuesday for the first leg of their last 16 tie.
Many are predicting it will be a tough game for the Gunners, as they come up against the deadly forward trio of Luis Suarez, Lionel Messi and Neymar.
Parlour is one who agrees, and says for him it will be interesting to see how manager Arsene Wenger approaches the game.
“It’s all about having a chance in the second leg for me,” he told Fletch and Sav.
“You’ve got to go to the Nou Camp a chance. The front three they [Barcelona] have got is amazing, there’s no denying that.”
“It’s going to be really interesting to see how Arsene Wenger sets up. Does he go like Bayern Munich? Will it be defensive? They might play a little bit deeper.”
It will certainly be interesting to see how Wenger approaches the game, especially given his defensive options.
With Gabriel Paulista out injured Per Mertesacker is expected to start in the game, but his lack of pace will be a serious concern against the aforementioned forward trio.
That could see him go with two defensive midfielders to protect that defence, rather than just Francis Coquelin as usual.
It will also be fascinating to see who he selects up front, with Olivier Giroud and Theo Walcott both offering different styles that could be equally effective against Barcelona.