Robert Lewandowski has offered a heartfelt goodbye to Bayern Munich as his move to Barcelona nears completion. After weeks of saying the striker was staying despite his wish to leave, Bayern finally relented on Saturday and said they had come to a verbal agreement with supposedly cash-strapped Barca. “I would like to thank my team-mates, staff members, club management and everyone who has always supported me and made it possible for us to win trophies for Bayern,” Lewandowski wrote on Instagram. He spent eight seasons at Bayern, winning the Bundesliga every time and lifting the Champions Leagu…