With 10 places separating the two sides, the clash comes at a defining part of the season with six games scheduled for both sides in just 23 days.
Smith scored 13 times for Leeds in one season with the club in 2013/14, before going on to have spells with Fulham and Bristol City prior to joining QPR. After 20 league games this season Smith's former and current club are at polar opposite sides of the league table.
Leeds have the opportunity to cut a five-point gap to the Championship play-off positions, whilst QPR are without a win in their last five matches, hovering just six points above the relegation zone.
Ahead of the crucial fixture, Smith told the Yorkshire Evening Post
I think Holloway might walk or get sacked if we lose against Leeds and Birmingham #QPR— Bradley9️⃣7️⃣ (@BradleyRblock97) December 5, 2017
“It’s been quite an unpredictable league so far with a few exceptions but it feels like it’s starting to take a bit of shape.
“We’re very confident at home but Leeds have shown what they can do. Neither team’s going to hold back,” he added.
QPR's home record this season could prove pivotal against Leeds and for their hopes for a rise up the table, as Rangers have lost just twice on their home deck this season, securing memorable victories against league leaders Wolves and the impressive Sheffield United.