On 31st January 2020, Norwich coimpleted the signing of Coventry City full-back Sam McCallum for an undisclosed fee (rumoured to be around £3million). He was then loaned back to Coventry for the remainder of the 2019/20 season.
Born in Canterbury, McCallum began his playing career with non-league Herne Bay. He was also capped by England Schools' Under-18s. After a period with Jamie Vardy's V9 Academy, he signed for Coventry in Augiust 2018. He made his first team debut in the EFL Trophy in November 2018 against Cheltenham before a full league debut in December 2018 against Southend United. He went on to make 35 appearances, scoring three goals. It was reported that Liverpool and Leicester were also interested in signing him.
Coventry manager Mark Robins said: "Sam is a player with great ability and potential in the game, and there has been much interest in him this season. To us, it was unfortunately a case of ‘when’ not ‘if’ Sam would leave, such was the level and nature of the interest. We rejected an offer earlier this week for him, but Norwich have now made a substantial bid that we have accepted. As part of the deal, Sam will return on loan to us for the rest of the season and we look forward to continuing to work with him and have no doubt he will be an important and positive influence in the rest of the campaign.”
On 9th June 2020, clubs in Leagues One and Two voted to end the season due to the Coronavirus pandemic and calculate final placings based on points per game. This meant that Coventry returned to the Championship as Champions
Sam made his competitive first team debut for Norwich in the Carabao (League) Cup first round clash at Luton on 5th September 2020 which Norwich lost 3-1. The Canaries had 15 first teamers missing due to international call-ups with a further two injured.
On 20th September 2020 Sam returned to Coventry joining them on a season-long loan.