England's 2003 RBS 6 Nations and 2003 World Cup heroes Jason Robinson, Lawrence Dallaglio and Steve Thompson have been invited to play for the northern hemisphere team against the southern hemisphere in the Tsunami appeal match at Twickenham on March 5.
Scotland have confirmed Gordon Bulloch, Chris Cusiter and Simon Taylor will be available to play in the fund-raiser.
Australia trio George Gregan, Phil Waugh and Chris Latham plus All Blacks Tana Umaga, Carl Heoft, Andrew Mehrtens and Jerome Kaino are expected to feature in a world-class south team.
Morne du Plessis, manager of the southern hemisphere side, said: "We accept that this is a significant sacrifice made by their Super 12 and club teams, and the players themselves - but such is the very nature of this event."
The full squads are expected to be announced next week.
Scotland won three matches in this year's Championship
24 March 2017, 3:33pm
Scotland secured three RBS 6 Nations victories for the first time since 2006 as they beat Ireland, Wales and Italy at BT Murrayfield. Here we take a look at what lies ahead for the Scots in the next 12 months.
Peter Malone has been Nigel Carolan's assistant since 2015
24 March 2017, 11:56am
The IRFU have announced Peter Malone as the Ireland Under-20s interim head coach for the World Rugby Under-20 Championship in Georgia this summer after Nigel Carolan announced he would take a position at Guinness PRO12 side Connacht.