The Club Brugge attacking midfielder is tipped to leave the Belgian giants in the ongoing transfer window.
The 21-year-old has emerged as a target for Leeds, who have opened talks with Club Brugge over a deal to sign him this summer.
Leeds want him as a potential replacement for Raphinha but they are facing competition for his signature for Serie A champions AC Milan.
The Rossoneri are also interested in Chelsea’s Ziyech, but according to Italian outlet Calciomercato.com, they are still keen to sign De Ketelaere.
He is one of the top names the Serie A giants are working on at the moment as they look to bring in reinforcements.
It has been claimed that AC Milan are working intensively on a deal to take the Belgian to Italy.
Leeds also remain keen and have the funds to compete with AC Milan for his signature this summer.
However, AC Milan can offer Champions League football to the young Belgian, which is a big factor in the saga.