Arsenal star William Saliba is now leading all players in Europe’s top leagues after he achieved one feat against Bayern Munich on Tuesday night. The Arsenal defence had a rare off-night in the first-leg of their Champions League quarter-final encounter with Bayern Munich. The scale of the occasion seemed to effect Gunners’ rearguard as they were guilty of a couple of errors which cost the North London club dearly. It is perhaps unsurprising that there was nervousness amongst Mikel Arteta’s ranks on Tuesday. After all, Arsenal have not competed at this stage in Europe’s elite club competition …