As far I know, Bayern uses it only in the CL, never seen it in the Bundesliga or german cup, but in Milans point of view it makes sense golden days are over, at least something they can be proud of nowdays
Opposition Check: Casillas has been on good form for porto. Keeping 11 clean sheets in 13 games. Probably has the Defence (Felipe and Marcano to thank) as well as their DM Danillo Pereira.