United have also recently been linked with a move for Calhanoglu’s fellow Turkish international Omer Toprak.
The report goes onto state that Leverkusen are willing to offload their star names following a disappointing season.
Calhanoglu star has the highest free-kick conversion rate in European football over the last three years.
The 22-year-old is the only player in Europe’s top-five leagues – England, Germany, France, Italy and Spain – to have scored 11 times from free-kicks over a three-year span.
Calhanoglu scored 11 out of his 82 free-kick attempts giving him a 13.4 percent conversion rate which is higher than Barcelona star Lionel Messi at 5.7 percent and Real Madrid forward Cristiano Ronaldo at 6.8 percent.
Bayer Leverkusen are currently in eight place in the Bundesliga with 36 points in 25 games.
Calhanoglu has a total of eight goals and eights assists in 34 appearances for Bayer Leverkusen in all competitions this season.