Mercer was named in England's 2023 Rugby World Cup training squad
Players
Who is Joe Marler: Ten things you should know about the England prop
Marler has already represented England at two World Cups
Who is Tom Pearson: Ten things you should know about the England back-row
Pearson is bidding to be a part of England's Rugby World Cup squad in 2023
Who is Shalva Mamukashvili: Ten things you should know about the Georgia hooker
Mamukashvili will be a key member of the Georgia squad at the World Cup
Who is Mihai Macovei: Ten things you should know about the Romanian captain
Mihai Macovei is an icon and is one of the most experienced players in the sport
Who is Mike Tadjer: Ten things you should know about the Portuguese hooker
Mike Tadjer is a powerful force in the front row
Who is Tomás Appleton: Ten things you should know about the Portugal captain
Tomás Appleton captains Portugal at their first World Cup since 2007 at France 2023
Who is Raffaele Storti? Ten things you need to know about Portugal wing
Storti will be key for Portugal in the Rugby World Cup
Who is Quade Cooper? Ten things you should know about Australia fly-half
The veteran No 10 is an Eddie Jones favourite
Who is Emiliano Boffelli? Ten things you should know about the Argentina back
Boffelli is a key member of the Argentina squad