It took Romelu Lukaku just 82 seconds to mark his return to Inter Milan with a goal.
But it was Denzel Dumfries who decided the game with a stoppage-time winner to see Inter snatch a 2-1 victory at newly-promoted Lecce on Saturday, just as the Nerazzurri appeared to be heading for a surprise draw.
"It's a victory that we wanted with our hearts, the team believed right until the end," Inter coach Simone Inzaghi said.
"Objectively though, a team like ours should have finished it off earlier, especially as we scored in the first minute.
"We had a great spirit but we have to analyze why we were reduced to wining at the last second."
AC Milan also got off to a winning start as it opened its defense of the league title with a 4-2 truimph over Udinese - albeit with the help of a controversial penalty.
Inter brought back Lukaku on loan this offseason, a year after he left to join Chelsea shortly after firing the Nerazzurri to the Serie A title.
Coincidentally, Lukaku kicked off his second stint at Inter at the same team he faced on his first debut when he scored in a 4-0 win three years ago.
And it took the Belgium forward less than two minutes to reopen his Inter account. Federico Dimarco floated in a cross from the left and Matteo Darmian nodded it back across goal for Lukaku to head in from close range.