Former France wing Vincent Clerc is expecting next season to be a thriller after the 2019-20 campaign was cut short.
Due to the coronavirus pandemic, the Top 14 is to be abandoned for 2019-20 with continental rugby postponed for four months.
French Rugby Federation president Bernard Laporte said the sport is suspended indefinitely as coronavirus spreads throughout the country.
Nemani Nadolo will be in Leicester Tigers colours next season after the Premiership club lured the former Fiji powerhouse from Montpellier.
Ben Botica scored two second-half penalties to help Bordeaux Begles to a 26-24 victory in a tightly contested match against Castres.
Racing 92, Clermont Auvergne, Bayonne, Pau and Brive earned victories in Top 14, with leaders Bordeaux-Begles not in action.
Lyon and Toulouse were both winners in Sunday's Top 14 action, with Patricio Fernandez impressing for the former.
Bordeaux Begles gave another demonstration of their Top 14 title credentials with a bonus-point win over Clermont Auvergne.
Top 14 leaders Bordeaux-Begles have agreed a two-year deal with Ben Lam, who will join from the Hurricanes at the end of the campaign.
Racing 92 stretched their Top 14 winning run to five matches with a dramatic defeat of Toulouse.