Lautaro Martinez has scored nine goals in 26 games this season
Inter Milan stumbled in the Serie A title race as they were held to a battling draw at home by mid-table Bologna.
The result meant the defending champions failed to go within a point of leaders Napoli, although Inter, now three points back, do have a game in hand over their rivals.
Bologna opened the scoring through Santiago Castro in the 15th minute before Denzel Dumfries equalised with a rebounded effort four minutes later.
Inter took a deserved lead just before half-time through talisman Lautaro Martinez's close-range finish.
But Bologna hit back in the second half and levelled with defender Emil Holm's deflected shot after 64 minutes, and Inter were unable to find a late winner.
