The Premier League clubs for the previous season have confirmed their released lists to top-flight officials - and there are some high-profile names that Celtic and Rangers could tap up.
The Light Blues have already confirmed the signing of released Chelsea star Dujon Sterling on a pre-contract deal after his Blues future was sure to lie away from the money-laden club, whilst Jack Butland has also joined from Crystal Palace. Meanwhile, soon-to-be Hoops boss Brendan Rodgers is known to shop down south and could well turn to his tried and trusted methods of recruitment once he is appointed into the Parkhead dugout.
There are some players who will be out of reach such as Roberto Firmino, Ilkay Gundogan and David de Gea, but there is a lot of solid talent in there that Rodgers and Blues boss Michael Beale could snap up if they are to improve their squads ahead of next season.
But who could they snap up? Record Sport takes a look at some options each club could try to tempt without spending a penny on transfer fees.
Arsenal
Joel Ideho
George Igaba-Ishimwe
Ainsley Maitland-Niles
Matthew Smith
Thomas Smith
Aston Villa
Declan Frith
Hayden Lindley
Arjan Raikhy
Ruben Shakpoke
Myles Sohna
Jed Steer
Ashley Young
Bradley Young
Bournemouth
Matthew Burgess
Christopher Francies
Brooklyn Genesini
Tarik Gidaree
Jefferson Lerma
Joshua Popoola
Jack Stacey
Junior Stanislas
Brentford
J'Neil Bennett
Lachlan Brook
Tariqe Fosu
Saman Ghoddos
Pontus Jansson
Nico Jones
Roco Rees
Roy Syla
Joel Valencia
Lucias Vine
Brighton and Hove Albion
Toby Bull
Billie Clark
Matthew Everitt
Teddy Jenks
Todd Miller
Samuel Packham
Haydon Roberts
Casey Shann
Jack Spong
Fynn Talley
Lorent Tolaj
Antef Tsoungui
Benjamin Wilson
Chelsea
Derrick Abu
Prince Adegoke
Tiemoue Bakayoko
Nathan Baxter
Juan Familia-Castillo
Bryan Fiabema
Joe Haigh
Henry Lawrence
Sam McClelland
Dujon Sterling
Silko Thomas
Ethan Wady
Jayden Wareham
Crystal Palace
Joshua Addae
David Akrobor-Boateng
Ryan Bartley
Jack Butland
Maliq Cadogan
Reece Hannam
James McArthur
Luka Milivojevic
David Omilabu
Daniel Quick
Everton
Einar Iversen
Yerry Mina
Andros Townsend
Fulham
Thorsteinn Antonsson
Joe Bryan
Shane Duffy
Paulo Gazzaniga
Sonny Hilton
Sylvester Jasper
Ziyad Larkeche
Jonathon Page
Steven Sessegnon
Jean-Pierre Tiehi
Leeds United
Will Brook
Adam Forshaw
Stuart McKinstry
Joel Robles
Leicester City
Dan Amartey
Ryan Bertrand
Kelechi Chibueze
Jonny Evans
Thakgalo Leshabela
Nampalys Mendy
Ronny Nelson
Joshua Eppiah
Terell Pennant
Ayoze Perez
Bayli Spencer-Adams
Thanawat Suengchitthawon
Liverpool
Roberto Firmino
Jack Bearne
Liam Hughes
Oscar Kelly
Fidel O'Rourke
Oludare Olufunwa
Alex Oxlade-Chamberlain
Manchester City
Terrell Agyemang
Ilkay Gündoğan
Rowan McDonald
Manchester United
Di'Shon Bernard
David de Gea
Ethan Galbraith
Phil Jones
Axel Tuanzebe
Charlie Wellens
Newcastle United
Niall Brookwell
Ciaran Clark
Daniel Langley
Matty Longstaff
Joshua Stewart
Isaac Westerndorf
Nottingham Forest
Andre Ayew
Jack Colback
William Fewster
Alex Gibson-Hammond
Ryan Hammond
Nicky Hogarth
Adnan Kanuric
Jesse Lingard
Cafu
Lewis Salmon
Jordan Smith
Lyle Taylor
Southampton
Goran Babic
Samuel Bellis
Willy Caballero
Mohamed Elyounoussi
Matthew Hall
Zuriel Otseh-Taiwo
Leon Pambou
Fedel Ross-Lang
Jak Stewart
Wiliam Tizzard
Jack Turner
Theo Walcott
Caleb Watts
Tottenham Hotspur
Jamie Bowden
Kallum Cesar
Malachi Fagan-Walcott
Marqes Muir
Lucas Moura
West Ham United
Brian Kinnear
Manuel Lanzini
Ademipo Odubeko
Armstrong Oko-Flex
Wolverhampton Wanderers
Michael Agboola
Diego Costa
Jack Hodnett
Joao Moutinho
Luke Matheson
Lee McLaughlin
Taylor Perry
Jack Scott
Adama Traore
