Radja Nainggolan scored the lone goal as Cagliari forced Inter Milan to a 1-1 draw in a Serie A clash staged on Sunday with the midfielder admitting to having enjoyed the result.
Inter loaned Nainggolan to Cagliari in August 2019 and the midfielder came back to haunt Antonio Conte's men with a 78th-minute strike.
The 31-year-old rifled a long-range shot past Samir Handanovic with the aid of a deflection off Alessandro Bastoni's heel to cancel out Lautaro Martinez's header.
The Belgian chose not to celebrate the goal but admitted to having enjoyed the pleasure of denting his parent club chances of lifting the league title.
"I have a lot of respect for the Inter fans and for my former team-mates. But I felt treated like a toy. On one hand, I'm happy for the goal, on the other I'm not as I wish my ex-team-mates the best.
"Who knows (what will happen in the future). I'm concentrating on each game as it comes. I'm having fun, I have some excellent team-mates and we're playing for something special," he told DAZN.
Inter have now been held to three successive 1-1 draws in Serie A and are three points adrift of leaders Juventus, who face Napoli in their game in hand later on Sunday.