As the 1st September edges ever closer, teams across the Championship will be racing to complete deals before the deadline in just under a month's time.
And one position Alex Neil is looking to strengthen is that up front. The Black Cats were keen to link up with Everton man Nathan Broadhead after his successful loan spell last season, only for the 24-year-old to join Championship rivals, Wigan Athletic.
With six new faces already through the door at the Stadium of Light, Sunderland will be keen to bring in more to maintain their Championship status for another season.
READ MORE: Sunderland advertise for academy manager role as restructure continues
Here is a full list of every signing so far in the Championship.
Birmingham City
Finley Thorndike, Dion Sanderson, Przemyslaw Placheta, John Ruddy, Auston Trusty
Blackburn Rovers
Ethan Walker, Callum Brittain, Tyler Morton, Sammie Szmodics
Blackpool
Lewis Fiorini, Rhys Williams, Dominic Thompson, Theo Corbeanu
Bristol City
Kane Wilson, Kai Naismith, Mark Sykes, Stefan Bajic
Burnley
Scott Twine, Luke McNally, Taylor Harwood-Bellis, CJ Egan-Riley, Samuel Bastien, Josh Cullen, Ian Maatsen, Arijanet Muric, Vitinho, Manuel Benson
Cardiff City
Ebou Adams, Callum O'Dowda, Ollie Tanner, Jamilu Collins, Jak Alnwick, Mahlon Romeo, Vontae Daley-Campbell, Ryan Allsop, Romaine Sawyers, Andy Rinomhota, Sheyi Ojo, Cedric Kipre, Jaden Philogene
Coventry City
Kasey Palmer, Callum Doyle, Jonathan Panzo, Tayo Adaramola
Huddersfield Town
Will Boyle, David Kasumu, Connor Mahoney, Kyle Hudlin, Jack Rudoni, Yuta Nakayama, Tino Anjorin
Hull City
Tobias Figueiredo, Ozan Tufan, Nathan Baxter, Jean Michael Seri, Allahyar Sayyadmanesh, Dogukan Sinik, Benjamin Tetteh, Oscar Estupinan
Luton Town
Alfie Doughty, Cauley Woodrow, Matt Macey, Louie Watson, Ethan Horvath, Luke Freeman, Carlton Morris, John McAtee, Aribim Pepple
Middlesbrough
Liam Roberts, Ryan Giles, Darragh Lenihan, Zack Steffen, Tommy Smith, Marcus Forss
Millwall
Zian Flemming, Benik Afobe, George Honeyman, Charlie Cresswell, Jamie Shackleton, Connal Trueman
Norwich City
Isaac Hayden, Gabriel Sara, Marcelino Nunez, Aaron Ramsey
Preston North End
Freddie Woodman, David Cornell, Ben Woodburn, Robbie Brady, Troy Parrott, Alvaro Fernandez
Queens Park Rangers
Jake Clarke-Salter, Kenneth Paal, Tyler Roberts, Taylor Richards
Reading
Joe Lumley, Tom Ince, Tyrese Fornah, Jeff Hendrick, Shane Long, Sam Hutchinson, Mamadou Loum, Nesta Guinness-Walker, Dean Bouzanis
Rotherham United
Conor Washington, Peter Kioso, Tom Eaves, Cohen Bramall, Cameron Humphreys, Grant Hall, Lee Peltier
Sheffield United
Tommy Doyle, Anel Ahmedhodzic, Ciaran Clark, Reda Khadra, James McAtee
Stoke City
Aden Flint, Harry Clarke, Josh Laurent, Liam McCarron, Gavin Kilkenny, Dwight Gayle, Will Smallbone
Sunderland
Leon Dajaku, Dan Ballard, Jack Clarke, Aji Alese, Alex Bass, Ellis Simms
Swansea City
Nathan Wood, Wasiri Williams, Joe Allen, Matthew Sorinola, Harry Darling
Watford
Vakoun Bayo, Rey Manaj, Ben Hamer, Luigi Gaspar, Scott Holding, Mario Gaspar
Wigan Athletic
Ryan Nyambe, Nathan Broadhead
West Brom
John Swift, Jayson Molumby, Jed Wallace, Okay Yokuslu
