Sassuolo have signed Croatia full-back Sime Vrsaljko from Genoa for a reported seven million euro fee.
Serie A champions Juventus ended the season with a record 102 points after a comfortable 3-0 win over Cagliari.
AC Milan missed out on a Europa League qualifying place despite seeing off Sassuolo on the final day of the Serie A season.
Juventus take aim at a historic 100-point mark while Torino look to clinch the last European place this weekend.
Livorno, Bologna and Catania were relegated from Serie A on Sunday, while champions Juventus earned a late win at Roma.
Sassuolo completed a great escape to secure a second season in Serie A by rallying to beat Genoa 4-2.
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