Robert Lewandowski is considering hiring personal security for the last few months of his Borussia Dortmund contract. The forward is set to face the wrath of angry fans after he agreed to join Bundesliga rivals Bayern Munich in the summer. One of Lewandowski’s agents Maik Barthel told German paper Bild: 'Yes, we are seriously considering it.' Since the announcement of his switch to Bayern, Dortmund supporters have shown ill will towards Lewandowski on social networks and in 2012, unknown perpetrators broke into his house in a small city close to Dortmund. Lewandowski had announced his intention to quit the Westfalenstadion once his contract expires at the end of the season.