I have seen lately that someone or more people are trying to manipulate some football markets.
They show up with 8K-10K on games with lower interests. They usually lay the favorite.
Bare in mind that once they start to push the price, they won't stop until kick off, my advice is to follow one tick above that 8K-10K, I have tryed to oppose once and got hurt badly but, since then I am following them like a parasite and it's working!

P.S. They just appeared on Bochum vs Kaseisl. 15 minutes ago...
Good luck