Cricket World Cup 2019: The X-Factor for each  team in the tournament

#6 Tom Latham (New Zealand)

Latham is the vice-captain of the Black Caps

Even though there are chances that Latham might miss Kiwis' opening encounter against Sri Lanka, he remains a key figure in the New Zealand batting department. He is one of the few players in the Black Caps' squad who can play spin really well as was evident in the bilateral series against India in 2018-19.

He has the ability to move up and down the order with relative ease, whether it's opening the innings or batting at No.5, which will allow Williamson some flexibility to make changes, as the situation demands. Additionally, he will also be keeping wickets, and providing useful insights to bowlers from behind the stumps.

#5 Glenn Maxwell (Australia)

Maxwell is a batting all-rounder

With the return of Steven Smith and David Warner to the squad, it looks like Australia is once again on the path to World Cup success. A strong batting order, coupled with a formidable bowling line-up and a positive team environment, has meant that Australia is well on its way to defend its crown. One big name they will be relying on to have a fantastic World Cup is the 30-year-old all-rounder Glenn Maxwell.

A hard hitter of the white cricket ball, Maxwell possesses a strike rate of over 120, and has the ability to render bowling attacks useless. A livewire on the field, Maxwell can also pitch-in a few overs with his off-breaks, releasing pressure off captain Aaron Finch, in case one of his strike bowlers start losing the plot. Australia would hope that the 'Big Show' comes to the party on the biggest stage of cricket.