The exciting attacking talent is on the January market radars of both Premier League clubs, says Sky Sports.
Diomande was born in Ivory Coast and moved to Florida in 2022, where he played on a university team for three years. He left for Leganés in 2025, but after six months he switched to Leipzig, where he has performed excellently this season.
Diomande has scored four goals and provided the same number of assists in fourteen games.
For Leipzig, they're insisting the winger won't leave for less than €100m.
RBL chief Marcel Schafer recently stated: "Yan has adapted very quickly to us in the Bundesliga, especially considering that he is only in his first year as a professional and is very young.
"He is on the right track, but like all our other players, he still has a lot of potential to develop further. We are very much looking forward to realizing that potential together in the coming years."