Sydney Roosters will get the opportunity to secure back-to-back World Club Challenge titles when they travel to take on St Helens on February 22.
The Roosters beat Wigan Warriors to be crowned champions this year and will return to Lancashire for a showdown with Saints 12 months later.
Trent Robinson's side retained the NRL title last month and will be out to maintain their 100 per cent World Club Challenge record when they lock horns with the Super League champions.
Robinson said: "This is an important fixture on the rugby league calendar and we're looking forward to heading to England to compete against St Helens for the 2020 World Club Challenge title."
New head coach Kristian Woolf is looking forward to what will be Saints' first appearance in the fixture since 2015, when they lost to South Sydney Rabbitohs.
Woolf said: "We are really excited about the opportunity to face the Roosters in such a prestigious fixture.
"It will be a great challenge for us to test ourselves against the current World Club champions and we are aiming to stand up and represent Super League and this part of the world in what will be a huge game."