Giovanni Trapattoni last night revealed he made Inter a promise to win the Serie A title when they appointed him as head coach in 1986.

Trapattoni rewrote Italian football with the Nerazzurri as they set a record points total to win the 1988-89 Scudetto, beating off Arrigo Sacchi’s Milan and Diego Maradona’s Napoli.

The 80-year-old was interviewed on Inter TV’s program celebrating 30 years since the triumph.

“With the help of the president Ernesto Pellegrini we managed to create a great team,” Trapattoni recalled.

“I signed a three-year contract with the club and I told Pellegrini: ‘I promise you that within three years we’ll win something’. And that’s what happened.”

Trapattoni spent five years as Inter’s head coach before returning to Juventus in 1991, having previously left the Bianconeri to move to San Siro.

He is still regarded as one of the greatest coaches football has ever produced, winning seven Serie A titles during the 1970s and 1980s.