Sassuolo and Fiorentina had to settle for a point each from a draw that saw the first goal scored after either side and an hour complete the match with 10 guys.
When Alfred Duncan hit a rising left-foot shot to the upper corner in the corner of the area, sassuolo took the lead after 62 minutes.
Five minutes later the home side doubled their advantage when Duncan crossed low and home was swept by Khouma Babacar.
But over three minutes Fiorentina had pulled back a goal as Giovanni Simeone was on hand to fire home after having a shot by Edimilson Fernandes from the region had come back off a post.
Sassuolo recovered their two-goal advantage through Stefano Sensi with 10 minutes to move because he fired into the bottom corner from 25 yards.
However Sassuolo were reduced to 10 men when after protesting about the choice, replacement Filip Djuricic was reserved with four minutes remaining and immediately shown a second yellow.
Having a minute left of regular time Marco Benassi gave Fiorentina hope when he followed a header up from close range to score.
A minute later the visitors needed Nikola Milenkovic but through seven minutes of stoppage time they caught a stage after Kevin Mirallas felt\.
AC Milan and Torino performed a goalless draw at the San Siro which abandoned the Rossoneri fourth at the table.
The point gained was enough to elevator to Torino over Atalanta and into sixth place.
Duvan Zapata’s hat-trick had earlier earned Atalanta a 3-1 triumph at Udinese, a success which had transferred them up to sixth at the desk before Torino’s lure.
The Colombian struck following two, 62 and 80 minutes, using Udinese’s goal coming from Kevin Lasagna in the 12th minute\.
Empoli overcome Bologna 2-1 with Antonino La Gumina with a hand in both goals for the winners. The striker set the initial up also, after Andrea Poli equaliserthat he uttered an winner.
Ten-man Chievo held on for a point from a 1-1 draw away to Parma later taking the lead through Mariusz Stepinski early in the second half.
Before the visitors were reduced to 10 men when Fabio Depaoli had been shown a second yellow card to go parma equalised through Bruno Alves following 53 minutes.
Genoa acquired over the dismissal of Domenico Criscito following 10 minutes as they drew 1-1 at home to SPAL.
The people went ahead five minutes later when Krzysztof Piatek scored a penalty seven minutes prior to 27, but the home side maintained a stage\.