Haiti, Morocco and Brazil lie in wait for Scotland who make their World Cup return for the first time since 1998 as they aim to make history in North America.
Hearts goalkeeper Craig Gordon, 43, missed out on the last Euros but takes his place in the side in what is an incredible comeback after suffering a career-threatening double leg break in 2022.
Ross Stewart also returns after four years away from international football after bagging 11 goals in 33 Southampton games this season, including a crucial goal in the Championship play-off semi-final against Middlesbrough.
Hull City star Oli McBurnie controversially missed out on the squad despite scoring 17 goals for Hull City in the Championship and leading his side to the play off final this weekend.
Che Adams, Lyndon Dykes, George Hirst, Lawrence Shankland and Ross Stewart have made the squad instead in a move that may come back to bite Clarke.
Scotland will face Curacao in a Hampden friendly on 30th May before jetting off to a training camp at Inter Miami’s state-of-the-art Florida Blue Training Center and finally playing their final warm-up game against Bolivia in New Jersey on 6th June.
Scotland's World Cup squad in full:
Goalkeepers: Craig Gordon (Hearts), Angus Gunn (Nottingham Forest), Liam Kelly (Rangers).
Defenders: Grant Hanley (Hibernian), Jack Hendry (Al Etiffaq), Aaron Hickey (Brentford), Dom Hyam (Wrexham), Scott McKenna (Dinamo Zagreb), Nathan Patterson (Everton), Anthony Ralston (Celtic), Andy Robertson (Liverpool), John Souttar (Rangers), Kieran Tierney (Celtic).
Midfielders: Ryan Christie (Bournemouth), Finlay Curtis (Kilmarnock), Lewis Ferguson (Bologna), Ben Gannon-Doak (Bournemouth), Billy Gilmour (Napoli), John McGinn (Aston Villa), Kenny McLean (Norwich), Scott McTominay (Napoli).
Forwards: Che Adams (Torino), Lyndon Dykes (Charlton Athletic), George Hirst (Ipswich), Lawrence Shankland (Hearts), Ross Stewart (Southampton).