Huh
1st, was match already played? I
f not, could you post screenshot of his squad?
Your team has quite weak defence. I would suggest you to play through flanks, to put blue arrows on mc's and amc, but still it might not be enough.
I usually use 3dc+dmc defence against 3ST formations, but you don't have good players on those positions. Moreover, your best defender DL would be on bench if 3DC defence was used.