4-5-1 v style works well against narrow diamond, so your formation is good to go
Damn best of luck against this, I haven't lost a game yet using narrow diamond. It's one of those formations that just dominates most of the competition.
4-5-1 V or the butterfly works best...so does 4-4-1-1 with a very good AMC
Beat the diamond home (butterfly) and away (4-4-1-1) in the CL QF with the opponent watching.
Go Leo L24 Farmer ---
Very Athletic L20 (Semi-Retired) --- Real Messy L16 (Retired) --- Athletic Kuching L17 --- Los Galaxy L14 28T
Its a tuff one, he is really strong, I would use the 3w-1-4-2, you have the squad for it, your only four star player would be one of your strikers, it also means having two up front is more of an attacking threat, you will also have a nice flat four across the middle and the team looks balanced.