The winger is in his third season at Elland Road, and having racked up 116 appearances for the Whites already, he is very much part of the furniture in Yorkshire.
But this summer it looks as if Leeds will finally pull the trigger on a permanent deal for the 24-year-old, with The Athletic suggesting that an agreement has already been reached, and that a fee of around £11 million will be enough to secure a switch.
With six goals and four assists to his name already this season, Harrison has proven that he has the quality needed to compete in the Premier League, and has adherence to Marcelo Bielsa’s uniquely demanding style of play has been evident from his early days with the club.
In fact, his exemplary work ethic was even highlighted by former Wales manager Chris Coleman during a recent appearance on Sky Sports’ Monday Night Football.
At £11 million, if that is indeed the fee required to secure his services, Harrison could be an absolute bargain.
Elsewhere, Leeds are considering a move for Torino centre-back Nicolas N’Koulou, according to Calcio Mercato,
The Cameroonian is out of contract with his current employers in the summer, and has previously worked alongside Bielsa during his time at Marseille, with the Argentine said to value him “very much”.
N’Koulou has made 11 Serie A appearances this season, and for a side who have been blighted by defensive injuries this season, his arrival on a free transfer could be hugely welcome boost.
The Cameroonian has quality in his game too.
Compared to Elland Road stalwart Liam Cooper, for instance, he has made 1.12 more interceptions per match this season, as well has registering a pass completion rate that is 5.3% better, and making 1.02 more clearances too.
Again, as with Harrison, bringing in a talented player who understands Bielsa's approach on such a cheap deal is surely a no-brainer, if the opportunity does indeed arise.
We’ve gathered the rest of this afternoon’s Premier League transfer speculation below:


. Bielsa plots Nkoulou swoop
Marcelo Bielsa is plotting a raid to bring Torino defender Nicolas Nkoulou to Leeds United. The Cameroonian could become a free agent this summer. (Calcio Mercato) (Photo by MIGUEL MEDINA/AFP via Getty Images) Photo: MIGUEL MEDINA

1. Bielsa plots Nkoulou swoop
Marcelo Bielsa is plotting a raid to bring Torino defender Nicolas Nkoulou to Leeds United. The Cameroonian could become a free agent this summer. (Calcio Mercato) (Photo by MIGUEL MEDINA/AFP via Getty Images) Photo: MIGUEL MEDINA

2. Toon monitor Toney
Newcastle United are monitoring Ivan Toney ahead a potential move to bring him back to the club. (The Sun) (Photo by Clive Rose/Getty Images) Photo: Clive Rose

3. Wilson wanted Barkley on Tyneside
Callum Wilson has admitted that he didn’t know Ross Barkley was going to sign for Aston Villa, otherwise he would have told Steve Bruce to get him for Newcastle United. (Super 6 Podcast) (Photo by Naomi Baker/Getty Images) Photo: Naomi Baker

4. Toon in Tavares race
Newcastle have entered the race for Leicester City youngster Sidnei Tavares. The 19-year-old is attracting interest from across the continent. (Photo by Jan Kruger/Getty Images) Photo: Jan Kruger