When In doubt I usually go 4-4-2/4-1-2-1-2ND. Try going through the history matches to check on formations that had beaten him, all the best!
Season 19
League Winner - Levels 1,2,3,4,5,7,8,9,10,11,12,13,15,16,17,18
Champions League Winner - Levels 2,3,5,6,10,13,15,17,18
Cup Winner - Level 3,5,16
Cup Quarter Finals - Levels 1,2