The 18-year-old midfielder has been emerging as one of the hottest prospects in Europe and several clubs are keen to snare him away from Dortmund next summer.
Liverpool are amongst several big wigs of the Premier League who want Bellingham and it was claimed recently by a former Premier League star that the deal to take him to Anfield is almost done.
Agbonlahor is an admirer of the youngster and believes he is only going to further improve as he continues to play for Dortmund week-in-week-out.
But he also understands why Liverpool want to sign him as their title rivals have only been improving their squads.
He does not feel the current midfield options will keep the Reds at the top and insisted that Bellingham would seamlessly fit into Jurgen Klopp’s team.
The former striker said on talkSPORT: “He is worth every penny.
“I look at his age, he is 18. He is going to keep improving. I watched him a few times, he is unbelievable.
“He is going to keep improving, especially at Dortmund playing every week.
“It makes sense for Liverpool as you need to keep improving.
“Man City have improved their squad, Chelsea have but Liverpool – [Naby] Keita, [Alex Oxlade-]Chamberlain – are they really the players that are going to keep Liverpool up there?
“So, he would fit straight into that midfield.”
With Bellingham’s contract running until 2025, Dortmund are in no mood to sell him next summer.