I reckon it will be tight for 75 minutes, in Germany, with Chelsea parking the bus and desperately trying to take the match to penalties. But, in the 76th minute, Bayern Hotspur will finally get the break-though goal, forcing Chelsea to, finally, open up. I, then, expect the match to have an explosive finish, with the Hotspurs nipping in a taking another goal in the 85th minute. I reckon the Chavs will score in the 89th minute to make for a nervy end-game, with the chance the the Hotspurs will score a cheeky third goal on the counter, as the Chavs commit all of their players forward (including the keeper) for a last-ditch corner.
Therefore, 3-1 to the Bayern Hotspur.