In the clash at the top at the start of the 16th day of the Top 14, Union Bordeaux-Bègles won against Castres Olympique (23-10). UBB quickly took control of the match by scoring through Seuteni (13th) and Picamoles (27th). Totally amorphous during the first act, the CO then woke up by scoring by Kornath (45th). Insufficient to overthrow the leader of the Top 14. Bordeaux-Bègles remains undefeated against Castres since September 2019 with five wins and a draw (in the first leg).