Newly-promoted Frosinone proved their Serie A credentials with an outrageous 4-2 home win over long-term top-flight tenants Sassuolo on Sunday afternoon. The hosts battled back from a 2-0 deficit to post an incredible victory.

After delivering a mixed bag of performance in the opening three Serie A rounds (W1, D1, L1), Frosinone thought home comforts would tilt the scales in their favor against Sassuolo. But Alessio Dionisi’s side came into proceedings buzzing from a 3-1 home triumph over Hellas Verona on the stroke of September’s international break.

Sassuolo still had a…