5-1-3n-1

So Im playing against this very defensive formation tomorrow (5-1-3mc-1), and Im not sure how to counter it.
I was thinking of going with a 3-1-3mc-2W-1 with offensive mentality, short passes, and pass down both flanks since he does not have wingers.
But is it smart to only use 3 defenders against his lonely striker? His striker got 5 stars.
Any recommendations are welcome :D

Definitely 3 defs (you can't do less), Definitely down both flanks and definitely 2 strikers to challenge his 5 defs. 3-5-2V should do.