With Lionel Messi and Cristiano Ronaldo continuing to dominate the world of football, questions are often asked about who will eventually succeed the dynamic duo.They show no sign of slowing down even as they approach their twilight years but in some point in the near future, someone surely has to usurp them.The likes of Neymar, Gareth Bale and Eden Hazard are three names regularly linked with being the ones to break the mould but as of yet, they have not found a way to do it.Neymar is the only one to even feature on the Ballon d'Or podium alongside Messi and Ronaldo.Hazard is regularly viewed as a viable candidate to be the best player in the world, with his low centre of gravity and decisive nature ideal tools to get him to the very top.Last season, he was arguably the Premier League's finest player as Chelsea lifted the Premier League title and he was awarded the PFA Player of the Year back in 2014/15, when he guided Jose Mourinho's side to the top of the pile.But, the general consensus is that the Belgian superstar is missing something from his game and BT Sport pundit Rio Ferdinand believes he knows what it is.Speaking before Chelsea's game versus Roma in the Champions League, the former Manchester United defender weighed in with his opinion.

WATCH: FERDINAND'S VIEW

So, Ferdinand believes that Hazard must find a new level of hunger in order to match the world's two finest players.

Ronaldo is the finest advocate of his theory, with the Portuguese striker always noticeably furious when he fails to find the back of the net in any fixture.

HAZARD'S MOMENTS OF MAGIC THIS SEASON

Hazard has enjoyed his start to the season after an ankle injury initially ruled him out.

He was outstanding in the 2-1 win over Atletico Madrid in the Champions League and against Bournemouth on Saturday, he scored the winning goal.

However, back in September, Antonio Conte had a similar theory about his talisman.

CONTE HAS A SIMILAR VIEW

“Sometimes, if Eden scores one goal, he’s happy and then, if there is another situation, he prefers to make an assist rather than scoring twice," he said.

"I see with Ronaldo that if he scores once, he wants two, three, four. It’s the same for Messi.

"So, yes, Eden can improve. It’s not about being selfish. I don’t like selfish players. I like players who are used to thinking about the team and are used to thinking about ‘us’, not ‘me’.

"Eden is not selfish. He’s a player who loves to play football. I like this behaviour, this attitude. But, for sure, I like to repeat to him that in every game he must be decisive.”