Jeremie Boga’s solo effort had given Sassuolo the lead, but Gaetano Castrovilli scored one and created another for a Fiorentina victory.
The Viola’s unbeaten run came crashing to a halt with Sunday’s controversial 2-1 defeat to Lazio. Franck Ribery was so incensed at the refereeing decisions that after the game, he pushed the linesman and received a three-match ban. Luca Ranieri was also suspended, with Martin Caceres and Pol Lirola injured, so Kevin-Prince Boateng was drafted in to partner Federico Chiesa.
Sassuolo missed Gianluca Pegolo, Vlad Chiriches, Rogerio, Gian Marco Ferrari, Mehdi Bourabia, Luca Mazzitelli and Alessandro Tripaldelli. Fiorentina have not conquered the Mapei Stadium in Serie A since a 3-1 result in February 2014.
Boateng faced his former club and made an immediate impact, as within a few minutes he came sliding in to clip the far post.
Jeremie Boga put Sassuolo in front with a magnificent solo effort, as he surged down the left, cut inside between Nikola Milenkovic and Erick Pulgar and curled a low right-foot strike into the far bottom corner from just inside the box.
Marco Benassi thought he had scored for the Viola, but his goal was disallowed for an earlier Pulgar offside position in the build-up.
Fiorentina finally got an equaliser that counted when Venuti whipped in a cross for Gaetano Castrovilli’s sensational diving header steered into the near bottom corner.
Andrea Consigli did well to deny a Milenkovic header on Pulgar’s cross, but moments later was beaten by the same player.
This time, goalscorer Castrovilli provided the assist, pulling back from the right for Milenkovic to fire in from 12 yards, in a rare goal with his foot.
Castrovilli and Chiesa went close to adding a third, but in the final minute Marlon turned wide from a promising position.
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