Lukaku is set to re-join Chelsea from Inter Milan after the Blues agreed to pay £97.5 million for his services.
And speaking of the qualities of the Belgian forward, Ferdinand is optimistic his arrival will trun Chelsea into a competitive side and believes his previous spell with United will motivate him to achieve Premier League success this time around.
"I’ve spoken to him recently and he’s hungry, man,”
Ferdinand said on his FIVE YouTube channel on Monday.
"He hasn’t confirmed to me that he’s signing for Chelsea but he just said this season, he’s hungry.
"I just think this guy, a lot of greatness comes through having fuel and what I mean by that is having doubters and wanting to prove them wrong.
"He will be sitting there and looking in the diary to see when that Old Trafford game is and he will want to unload.
"Romelu Lukaku guarantees you 20 goals, minimum. He guarantees you that. He’s scored goals wherever he’s been, he’s an elite goalscorer, it’s as simple as that.
"If he gets the chances that Timo Werner got last year, he bangs 30-35 goals, it’s as simple as that.
"I think Werner will still be vital for them with how he runs off the ball and creates space.
"Chelsea have heavy artillery up front now, a real mix of talent, all different type of players, a real good blend.
"Lukaku going there makes them an absolute threat to win the title. They could win it."
In a two-year stint at Inter, Lukaku scored 47 goals in 72 Serie A appearances as he helped the Nerazzurri win a first league title since 2010 under Antonio Conte last season.
