Andrea Tafi has not been listed in the 2019 Dimension Data roster despite rumours he would ride for the South African team.
Tafi plans to ride Paris-Roubaix next year, 20 years after he took home the coveted cobble trophy.
The 52-year-old has registered with the UCI testing pool and says he has found a team to support his ambition.
Rumours had circulated that Tafi would join Dimension Data for the 2019 Monument, but the team has denied that.
The 2019 rider roster for Dimension Data, published last week, includes Brits Mark Cavendish and Steve Cummings, as well as new signings Enrico Gasparotto and Giacomo Nizzolo, but no Tafi.
Head of performance at Dimension Data, Rolf Aldag told Cyclingnews that Tafi will not be riding for the WorldTour team.
Aldag said: “He’s not with us, I can guarantee you that.”
Tafi won the French cobbled Monument in 1999 as Italian champion, then 32 years old, with Team Mapei.
The Tuscan retired in 2005.
His last participation, 14 years ago, he placed 42nd racing for Team Saunier Duval.
Australian Mathew Hayman (Mitchelton-Scott) won the race in 2016 at 37 years old.
The oldest winner is Frenchman Gilbert Duclos-Lassalle, who won twice, the second time in 1993 at 38 years old.
No one ever retired and returned 20 years later to race, let alone win.
Tafi’s former team-mate Paolo Bettini recently spoke publicly to discourage Tafi from riding the cobbled Classic.
Bettini said: “To Andrea I say, I hope you don’t race, you need to do something else in your life at 52 years old.”