On social media, we asked Sunderland fans to name a player who definitely shouldn't have left Sunderland and was never the same again… here, we take a look at the results after receiving plenty of responses on our Facebook and Twitter channels:
1. Josh Maja
Since leaving Sunderland, Josh Maja has struggled with injuries and has never quite managed to replicate his regular goal-scoring form. Photo: Harriet Lander
2. Don Hutchinson
The Gateshead-born midfielder joined West Ham from Sunderland in a big-money move but was never quite the same after suffering some injuries. Photo: Mark Thompson
3. Kevin Phillips
Kevin Phillips enjoyed a superb career in the EFL after leaving Sunderland but never quite hit his world-class European Golden Shoe-winning heights ever again. Photo: Michael Steele
4. Darren Bent
Bent left Sunderland for Aston Villa but was never quite as prolific in the Premier League again later joining Derby County and Burton Albion. Photo: Stu Forster