England skipper Chris Robshaw could become the country's third captain of the professional era to be overlooked for a Lions tour following Phil de Glanville (1997) and Steve Borthwick (2009).
With Wales' Sam Warburton pitched as the bookies' favourite for the British and Irish Lions captaincy, he may have seen off competition from Irish pair Paul O'Connell and Brian O'Driscol.
It is thought there will be few surprise selections, and none of the players will know about their Lions selection until tour manager Andy Irvine reads out the names during a mid-morning press conference.
The ten-match tour begins in Hong Kong against the Barbarians on June 1, followed by games in Australia, including three Test match appointments with the Wallabies.
More top news
The man who carried out the Westminster attack is thought to be British born and was once investigated by MI5, the Prime Minister has said.
Jason Day, who lost his father to stomach cancer at the age of 12, broke down in tears as he explained his shock exit during the WGC event.
The Gunners are set to offer £25 million to land their desired summer target while Chelsea will rival Manchester United for a raid on PSG.