"What the club have done with Suarez has happened with other players over the course of history," Forlan told Radio MARCA.
"The most important thing is that he gave everything for Barcelona.
"There's nothing he can regret."
Suarez follows Forlan's footsteps in becoming the latest Uruguayan international to play for Atletico.
"A player like Suarez fits in well at a club like Atleti," Forlan added.
"I think he's going to feel right at home.
"Let's hope he can help the team and fight for the top positions [in LaLiga Santander].