The 25-year-old spent three years on loan at Elland Road from Manchester City before joining permanently in an £11.25m move last summer, and he is under contract until 2024.
Harrison hit eight goals and provided one assist in 35 Premier League games last term to help the Whites avoid the drop, but his future is now being called into question.
According to the Daily Mail, Newcastle have identified the Englishman as an ideal transfer target as they will likely be priced out of a move for Bayer Leverkusen's Moussa Diaby.
Diaby would likely cost the Magpies in excess of £60m, but Leeds may still be reluctant to lose Harrison given that Raphinha is expected to complete a move elsewhere soon.
Speaking of Premier League wingers, Wilfried Zaha being linked with a move away from Crystal Palace is a common theme of most transfer windows, but this time, it is not Arsenal considering a swoop.
The 29-year-old has stayed put at Selhurst Park for the past eight years since initially arriving on loan from Manchester United but is now due to become a free agent in 12 months' time.
According to transfer expert Fabrizio Romano, Roma boss Jose Mourinho is a keen admirer of the Ivory Coast international, but no bid has been tabled yet.
Zaha has amassed 83 goals and 73 assists in 429 outings for the Eagles, who are at risk of losing the attacker on a free transfer at the end of next season.
From attackers who could arrive at the Stadio Olimpico to new one arriving, West Ham United are supposedly considering bringing Roma's Justin Kluivert to the club.
The Hammers will seemingly not be pursuing a move for Villarreal's Arnaut Danjuma, and it remains to be seen if their efforts to bring Jesse Lingard back to the club will prove successful.
As a result, Gazzetta Dello Sport - via TEAMtalk - claims that Nice attacker Kluivert, son of the legendary Patrick Kluivert, has emerged as an ideal target.
The report claims that the Europa Conference League winners will entertain offers for the 23-year-old, and he could be available for a fee of £12.7m.
Kluivert has just 12 months left to run on his Roma contract and spent the 2021-22 campaign on loan at Nice, where he scored six goals and set up six more in 31 outings in all tournaments.
Over in Scotland, Rangers are apparently close to bolstering their own attack with the capture of Rabbi Matondo from Bundesliga side Schalke 04.
The 21-year-old has been on the books at Schalke since leaving Manchester City in January 2019 but is another player who could leave on a free transfer in 2023.
According to Sky Sports News, Rangers are closing in on a deal to sign Matondo, who would become Giovanni van Bronckhorst's fourth arrival of the summer window.
The Wales international hit nine goals in 26 top-flight games for Juliper Pro League side Cercle Brugge last season but only has two goals to his name from 31 Schalke outings.