@SuperDunk - Think he is spot on that you may want to go for defence and counter when opponent is pretty strong in attack
@Ryan - He is also correct that the safest option is to go for MC and dominate the midfield
If you are comfortable with a draw, try a defensive 4-1DM-4M-1 (4-1-4-1). Could pull the fullbacks to a bit closer to central and also DMC closer to the DCs to limit the space of his mutant ST when oppnent has no wingers and both his ML & MR are not too outwide enough to cause troubles from the wings. If that’s a 4-way competition tie for the league, a draw does not do much harm:
Long/mixed, middle (can change to flank if ML & MR ratings are high), counter off (can be on if your DMC has playmaker SA); defensive; high press (try to stop attack in midfield to his mutant ST)
If you rather draw but are willing to take a bit of risk for quite a better chance of winning, you may consider 4-1DM-3-1AMR-1. Your opponent’s DL is a makeshift ML/DL, so defensive skills of that DL could be at most a 90% defender even when his ML skills on paper make him a 6.5*, and his DR is a proper 7* and his strongest defender. And you have a 7* AMR/ST. So the most logical setup is to only attack via right flank when: 1) 6* AML vs 7* DR does not seem useful; 2) have 3MC to match with his 3 MCs:
Long/mixed, right flank (most attacks via 3vs2 built from the back), counter on; defensive, high press
Can also play 4-1DM-3-1AMC-1, but that wasted your other ST ability as your ST is slightly better than AMC, and also opponents DCs are better than his DL.
All the best and best of luck with your match!