Leeds are tracking AZ midfielder Teun Koopmeiners as cover for first choice defensive midfielder Kalvin Phillips, according to Leeds Live.
Koopmeiners, 22, has impressed in Eredivisie this season.
He also poses more of a goal threat than Phillips, with 30 strikes in two and a half seasons in the Netherlands.
England international Phillips is among the first names on the teamsheet at Elland Road.
However, Leeds are otherwise light in that area and are planning to strengthen in the summer.