Alexander-Arnold has played 33 times for Liverpool this season. Photo Courtesy: AFP
Uncapped 19-year-old Liverpool defender Trent Alexander-Arnold is in Gareth Southgate's 23-man England squad for this summer's World Cup in Russia.
Defender Gary Cahill has been recalled and there are also places for Ruben Loftus-Cheek and Nick Pope.
Goalkeeper Joe Hart and midfielder Jack Wilshere have not been included,along with left-back Ryan Bertrand.
England start their Group G campaign against Tunisia on 18 June, before games against Panama and Belgium.
Liverpool midfielder Adam Lallana is one of five players on standby for the tournament, along with Burnley keeper Tom Heaton, Clarets defender James Tarkowski, Bournemouth's Lewis Cook and fellow midfielder Jake Livermore of West Brom.
"I believe this is a squad we can be excited about," Southgate said.
"It is a young group but with some really important senior players, so I feel the balance of the squad is good, both in terms of its experience, its character and also the positional balance."
Goalkeepers: Jack Butland (Stoke), Jordan Pickford (Everton), Nick Pope (Burnley).
Defenders: Trent Alexander-Arnold (Liverpool), Gary Cahill (Chelsea), Fabian Delph (Manchester City), Phil Jones (Manchester United), Harry Maguire (Leicester), Danny Rose (Tottenham Hotspur), John Stones (Manchester City), Kieran Trippier (Tottenham Hotspur), Kyle Walker (Manchester City), Ashley Young (Manchester United).
Midfielders: Dele Alli (Tottenham Hotspur), Eric Dier (Tottenham Hotspur), Jordan Henderson (Liverpool), Jesse Lingard (Manchester United), Ruben Loftus-Cheek (Chelsea).
Forwards: Harry Kane (Tottenham), Marcus Rashford (Manchester United), Raheem Sterling (Manchester City), Jamie Vardy (Leicester), Danny Welbeck (Arsenal).
Standby: Lewis Cook (Bournemouth), Tom Heaton (Burnley), Adam Lallana (Liverpool), Jake Livermore (West Brom), James Tarkowski (Burnley).
England's key World Cup dates
2 June v Nigeria (friendly) 7 June v Costa Rica (friendly) 12 June Squad leaves for Russia 18 June v Tunisia (opening group game) 24 June v Panama (second group game) 28 June v Belgium (final group game)
England squad in stats
Age: Based on players' age on the first matchday, England have named their third youngest squad for a World Cup (26 years 18 days) behind only the 1958 (25 years 81 days) and 2006 (25 years 286 days) editions.
Caps: The squad has made a total of 449 international appearances at an average of 19.5. Cahill (58) is the only player with more than 40 caps.
Goals: They have scored a total of 55 goals for England. Welbeck (15) and Kane (12) are the only players in double figures.
Continuity: Only five of the players featured in the 2014 squad - Cahill, Jones, Henderson, Sterling and Welbeck. This compares with six in the squad of four years ago that had been picked for the previous tournament.
Clubs: 10 Premier League clubs are represented, with Tottenham (five) boasting the most players ahead of Manchester United and Manchester City (four each).