Despite failing to make the Champions League quarter-finals since 2009-10, the Gunners cannot be discounted, says the Italian
Arsenal have been eliminated from the last 16 of the Champions League in each of the past six seasons, but Bayern Munich boss Carlo Ancelotti does not believe a psychological barrier will affect the Gunners.
Arsene Wenger's side last made the quarter-finals of the competition in 2009-10, with Bayern eliminating them at this stage in 2013 and 2014.
Despite Arsenal's disappointment on the continental stage for a prolonged period, Ancelotti will not be taking anything for granted and is wary of the threat they pose as Bayern prepare to host Wednesday's first leg.