Arsenal finished the league phase of the Champions League with a 100 percent record after a 3-2 win over Kairat Almaty at the Emirates Stadium. Mikel Arteta’s side played out a hard-fought goalless draw against Atalanta (away) in the league phase last season after David Raya’s stunning penalty save. The Bergamo outfit are one of the clubs that Arsenal could face in the double-legged round of 16 tie. Arsenal have not played Leverkusen in a competitive fixture since the 2002/03 Champions League season. Meanwhile, the Gunners have had a mixed record against Dortmund in the Champions League, picking up four wins, one draw and suffering three losses.