Internazionale coach Jose Mourinho has warned his team cannot keep riding their luck if they want to keep their place at the top of the Serie A standings.
Julio Cruz's goal in stoppage time handed Inter a 1-0 victory over Udinese on Sunday.
The result saw the defending champions return to the summit after rivals AC Milan were held to a 1-1 draw at Lecce, but Mourinho admits he does not want late goals to become a habit for his team.
''I am not satisfied with my team's play in attack,'' said Mourinho. ''In the last minute you can win or lose a game and in our last three encounters, we have won twice and drawn once. But it could be that in the future it will be our rivals who score in the last minute.''
The Nerazzurri beat Reggina 3-2 last weekend with Ivan Cordoba scoring the winner in the 90th minute, while three days later it was Cruz who came to the rescue with a late equaliser at Anorthosis Famagusta in the Champions League.
Despite his concerns, Mourinho is nevertheless impressed by the determination shown by his players of late.
''At this time my team are showing character and even when facing adversity, we don't give up,'' he said.
''The fact is that against a good side like Udinese we won, we were pragmatic and we claimed three points. We are first in the standings in both Serie A and in our Champions League Group B.''
Inter travel to La Favorita to meet Palermo on Sunday with a one-point advantage over Milan and Napoli, who are level on 23 points.