Barcelona left to rue missed chances as Bayern Munich comes out on top 2-0 in Champions League clash

By Matias Grez, CNN

Updated 0837 GMT (1637 HKT) September 14, 2022

Leroy Sané celebrates after scoring Bayern's second against Barcelona.

(CNN)For eight seasons, Bayern Munich fans had become accustomed to watching Robert Lewandowski find the back of the net on almost a weekly basis.

The Polish striker, one of the greatest forwards in the club's history, returned to the Allianz Arena on Tuesday for the first time since swapping Bavaria for Barcelona in the summer — and it wasn't quite the return he would have hoped for.Lewandowski missed a number of golden opportunities — one in particular in the first half, eight yards from goal, that he would usually score in his sleep — to leave the door open for Bayern to grab a crucial 2-0 win in this Champions League heavyweight clash.Second half goals from Lucas Hernandez and Leroy Sané secured the three points and extended Bayern's remarkable unbeaten run in the Champions League group stages to 30 matches, a streak that stretches back to 2017.Once Barça's «economic levers» had been activated to allow the club to register its summer signings, Lewandowski hit the ground running in his new home and bagged nine goals in six games prior to Tuesday's match.Read MoreREAD: How blind football is opening up new horizons for visually-impaired UgandansRobert Lewandowski had a bad night in front of goal.The 34-year-old received a relatively warm reception from the Allianz faithful on his return, but Bayern fans would have been as delighted as they were surprised to see their former hero miss so many chances.Profligacy in front of goal aside, there will be plenty of positives for Barcelona and its head coach Xavi to take away from the match, with the team competing for most of the 90 minutes