Yes, I think so ... probably quick around the court
Another college player and connected to the Borlée family of athletes. He is the son of Jacques Borlée, a former track and field athlete, and the younger brother of the famous sprinter twins, Jonathan and Kevin Borlée. While the Borlée family is primarily known for their success in track and field, particularly sprinting, Ilian is also involved in sports, though he is not as widely known in the same capacity as his brother
QR1: James Wilkinson UNR defeated Ilian Borlée (BEL) UNR by 2-6 7-5 [10-3]
Been trying to work out just what the family connection is. Jacques Borléee has seven children, five by his first wife (Olivia - also an athlete - the identical twins, Jonathan & Kévin, Dylan & Alizia) & two by another, one of whom is called Rayane, who's almost 26. Jacques has an older brother, Jean-Pierre. Ilian is 20. There's very little biographical detail on the Tennis Belge site.
*****
QR2: James Wilkinson UNR vs (q12) Jannik Opitz (GER) WR 2031 (CH = 954 in June 2023)
Not a Sibling Borlee, possibly a cousin, the 7th Borlee is Alizia
She was the fourth or fifth child of JB's first marriage, as I mentioned. The name of the seventh Borlée, i.e. the second child of the second marriage, appears not to be mentioned anywhere on the net.