Of the 10 players that we’ve selected - who have played for or represented both Sunderland and Millwall over the years - who is your favourite?
Cast your vote now! (top right of player profile)
Some good, some bad, but some did make an impact on Wearside.
Other names to have links with both clubs are: Kenny Cunningham, Danny Dichio, Justin Hoyte, Mick McCarthy, Anton Rogan, Martyn Waghorn, Darren Byfield, Darren Carter, William Maxwell and Nick Colgan, to name but a few.
Also, do you have any memories of players who have turned out for both clubs, please share.