Gareth Southgate was coy when asked whether he knows his starting line-up for England's first World Cup game against Tunisia on June 18, saying: "I might sleep on it."

However, the Three Lions boss hinted the two friendlies, including Thursday's assured 2-0 win over Costa Rica, and the build-up to Russia have given him food for thought, saying: "I'm really pleased with the three weeks' preparation, we've given ourselves a really good platform. If it's complicated it, it's in a really good way.

"We know certain decisions we need to make, we need options, we seem to have got through the two games without any serious injuries and we've got to have players that can come in and change matches when we're out there, and chase games and be able to shut games down."

England 23-man Nations League squad Show all 23 1 /23 England 23-man Nations League squad England 23-man Nations League squad Jordan Pickford Club: Everton

Getty England 23-man Nations League squad Jack Butland Club: Stoke City

Getty England 23-man Nations League squad Alex McCarthy LIVERPOOL, ENGLAND - AUGUST 18: Alex McCarthy of Southampton during the Premier League match between Everton FC and Southampton FC at Goodison Park on August 18, 2018 in Liverpool, United Kingdom. (Photo by Alex Livesey/Getty Images) Getty Images England 23-man Nations League squad Kyle Walker Club: Manchester City

Getty England 23-man Nations League squad Danny Rose Club: Tottenham Hotspur

Getty England 23-man Nations League squad Trent Alexander-Arnold Club: Liverpool

Getty England 23-man Nations League squad Kieran Trippier Club: Tottenham Hotspur

Getty England 23-man Nations League squad Luke Shaw Club: Manchester United

Getty Images England 23-man Nations League squad Joe Gomez Club: Liverpool

AFP/Getty Images England 23-man Nations League squad John Stones Club: Manchester City

Getty England 23-man Nations League squad Harry Maguire Club:Leicester City

Getty England 23-man Nations League squad James Tarkowski Club: Burnley

Getty England 23-man Nations League squad Dele Alli Club: Tottenham Hotspur

Getty England 23-man Nations League squad Eric Dier Club: Tottenham Hotspur

Getty England 23-man Nations League squad Jesse Lingard Club: Manchester United

Getty England 23-man Nations League squad Jordan Henderson Club: Liverpool

Getty England 23-man Nations League squad Fabian Delph Club: Manchester City

Getty England 23-man Nations League squad Ruben Loftus-Cheek Club:Chelsea

Getty England 23-man Nations League squad Adam Lallana Club: Liverpool

Getty England 23-man Nations League squad Raheem Sterling Club: Manchester City

Getty England 23-man Nations League squad Harry Kane Club: Tottenham

Getty England 23-man Nations League squad Danny Welbeck Club: Arsenal

Getty England 23-man Nations League squad Marcus Rashford Club: Manchester United

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Southgate was particularly impressed by Rashford's display and said: "What pleased me most is that he enjoyed his football tonight.

“He played with a real swagger, he's a Man United player and got booed at the start and cheered off at the end so that tells you about his performance. I'm really pleased for him."

However, he sidestepped the question as to whether the forward has done enough to earn a starting berth for England's Group G campaign.