Taking the contrarian side here: despite Atalanta BC being the public favorite, the 6.6% overround and +500 best line on Sassuolo suggest inflated chalk pricing.

Market split of 67/17 across 2 books. Home advantage factors into the pricing.

Market overround at 6.6% is in the normal range with 2 books pricing this game. Confidence level of 52% accounts for the vig-adjusted edge.