THEY may have overcome a considerable obstacle to the success of their campaign by beating Napoli on Thursday night but there is no time to bask in their high-spirits.

Arsenal will take a 2-0 aggregate lead with them to Italy next Thursday after an impressive, if not fully convincing, performance in the first leg.

Before that, they have arguably an even tougher test closer to home as they prepare for Monday’s trip to Watford and manager Unai Emery is well aware of how big a task it is.