Arsene Wenger’s men were put through their paces at the club’s London Colney training base as they finished their final preparations for the first leg of the showdown.
Arsenal warmed up for their clash with the Spanish champions with a frustrating goalless draw at home to Hull City in the fifth round of the FA Cup on Saturday afternoon.
Here are some of the best pictures from Monday’s Arsenal training ahead of Barcelona’s visit to The Emirates.
MORE: Latest Man Utd news
MORE: Latest Arsenal news
MORE: The latest football news