The left-back is not the first Coventry City player to be linked with Leeds United of late.
Leeds United are tracking a second Coventry City youngster, The Coventry Telegraph understands.
Leeds were strongly linked with a move for Jodi Jones, before the Coventry winger suffered a serious injury - from which he has yet to return - last season.
McCallum has made five appearances for a Coventry side topping League One this season, and 15 in total since his 2018 move from non-league Hearn Bay FC.
His potential earned him a new three-year contract earlier this year, although interest from a club of Leeds United's stature could be hard to ignore for either Coventry or their versatile left-back.
McCallum recently impressed the Coventry-born former Bradford City player and manager, Greg Abbott, who told The Coventry Telegraph: "It’s what Coventry fans want to see, just people prepared to roll their sleeves up from the management down to the youngest player on the pitch, who I think was the left-back Sam McCallum, who I thought was outstanding.
"And do you know what, that’s why I was so animated because I was so pleased to see that. He’s still only 19, by the way!"
McCallum is with the same agency as the Leeds midfielder, Adam Forshaw, according to Transfermarkt.
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