Matteo Darmian was not a potential hero as Inter Milan extended their Serie A lead to 11 points by beating Cagliari.
Former Manchester United full back-tapped home Ashraf Hakimi's cross has 14 minutes left to seal his eleventh win.
Struggler Cagliari frustrated Inter, seeing defender Stefan de Vries move forward against the bar after 68 minutes.
Antonio Conte now needs 116 points from eight games to win his first league title since 2009-10.
After beating second-placed AC Milan Parma 3-1 on Saturday, forward Romelu Lukaku had a rare day as Inter struggled to finish off many of their chances.
However, it was Parma Lone who wanted to leave Cagliari with a relegation-threat five points from Darmian's 18th defense.