The 21-year-old attracted plaudits during his 28 appearances, where he helped the Black Cats into the League One Play-Offs, which he was denied competing in due to injury.
While at the Stadium of Light, Sanderson bagged his first goal in professional football, opening the scoring in a 2-0 win over Rochdale in March.
What a feeling to score my first professional goal 🔥 Clean sheet , 3 points onto Tuesday game 🦾🦾 Ha’way the lads😉 pic.twitter.com/s9aJMyCXRV
— Dion Sanderson (@SandowRs) March 6, 2021
The temporary spell at Sunderland was Sanderson’s second successful loan move, after experiencing the Championship with Cardiff City the season previous.