Raheem Sterling: Sergio Aguero and Luis Suarez are both world-class

Raheem Sterling believes his new Manchester City teammate Sergio Aguero is the equal of his former Liverpool partner Luis Suarez.

Sterling, 20, became City's record signing when he joined them for £49 million on Tuesday.

The England international played alongside Barcelona's Champions League winner Suarez when the Uruguayan scored 31 goals in 33 league games for Liverpool to win the PFA Player of the Year and the Footballer of the Year awards in 2013-14.

And he believes City top scorer Aguero, who succeeded Suarez as the winner of the Golden Boot last season, is a striker of the same ilk.

"They are two players in the same category, both world-class players and can score from any moment in the game," Sterling told City's official website. "I am really looking forward to working with him as I did with Luis."

Sterling did not win a trophy in his Liverpool career and said the chance to lift silverware inspired him to join City as he set his sights on becoming a Premier League champion.

He added: "They have got world-class players and players I think are capable of winning things year in, year out. The team and the players Man City have got, they should be challenging for the title every year. This year should be no different."

Sterling, who wore No. 31 for Liverpool, has opted to take the No. 7 shirt at the Etihad Stadium, which was vacated when James Milner left for Anfield.

It is a number that acquired significance at his former club, where it was worn by Kevin Keegan, Kenny Dalglish and Suarez, among others.

"Over the years when you are watching football you see some great players and world-class players in the shirt," Sterling added. "It has always been one of my favourite numbers and I am glad I can be a player wearing that iconic number."