Cagliari had not lost in the league since September 1, and after Giovanni Simeone's management goal most of the home team went away.
Lazio took over in the second half and created plenty of chances, but could not score. Robin Olsens is suspended and in his absence Rafael made a strong effort in the Cagliari goal.
The lead stood when the clock ticked on 90 minutes, but then Lazio added another switch. With the scoreboard showing that 93 minutes had been played, Luis Alberto put themselves up 1 - 0 after an attack from the right.
The press home team appealed to the referee to blow the match. Instead, they saw Felipe Caicedo nod 2-1 in the 98th minute.
Lazio took the eighth straight league victory and hooks on the top team in Serie A. Right now, only three points between Lazio in third place and Inter series leader.