One talismanic Arsenal star failed to step up against Bayern Munich at the Allianz Arena on Wednesday night. Arsenal could not produce their best performance as they were knocked out of the Champions League by Bayern Munich at the quarter-final stage. Having battled to a 2-2 draw at the Emirates Stadium, this was a must-win game for the Gunners with a spot in the Champions League semi-finals on the line. The North London club have not reached the last four in Europe’s elite club competition since 2009. Bukayo Saka fails to inspire Arsenal against Bayern MunichHowever, when Mikel Arteta needed …