Bayern then won the DFB - Pokal on 15 May 2010 to secure the domestic double .
On 8 May 2010 , Bayern Munich won the 2009 -- 10 Bundesliga after a 3 -- 1 win at Hertha BSC .
Bayern Munich then won the DFB - Pokal on 15 May 2010 to secure the domestic double .
On 8 May 2010 , Bayern Munich won the 2009 -- 10 Bundesliga after a 3 -- 1 win at Hertha BSC .