Paddy Mulligan: Arsenal need to exploit Barcelona's tiny Achilles heel

Ex-Ireland full-back looks ahead to Champions League tie on the Rewind

Arsenal, Alexis Sanchez, Alex Oxlade-Chamberlain

Arsenal's Alexis Sanchez (left) and Alex Oxlade-Chamberlain (centre) during a training session at London Colney, London. (Picture by: Adam Davy / PA Wire/Press Association Images)

Paddy Mulligan believes Barcelona are clear favourites for tonight's Champions League first leg against Arsenal but that the Gunners can exploit some of their opponents' few frailties.

The ex-Ireland full-back reserved plenty of praise for Barcelona's peerless front three and metronomic midfield, but feels that Arsenal must try to test out the defence.

"Arsenal can go out and surprise these teams and Barcelona, their Achilles heel is always their defence. So if Arsenal can exploit that with the likes of Sanchez in there, Walcott and Chamerblain to come on," he said, adding that the counter-attack will be Arsenal's best friend.

Suarez, Messi, Neymar and Pique (Picture by: Adam Davy / PA Wire/Press Association Images)

"Unless Barcelona have a real off day night, which will happen no matter how good you are you can always have a night where things don't go your way. But it's going to take an almight effort from Arsenal to keep the tie alive."

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