Jo-Wilfried Tsonga overcame an early scare to win the opening reverse singles on Sunday to give France a 3-1 victory over the Czech Republic in the Davis Cup quarter-finals.
Amid increased security following the deadly attack in Nice, Tsonga rallied to beat Jiri Vesely 4-6 7-6 (7-3) 6-4 7-5 and earn a spot in the semifinals for his country for the second time in three years.
Tsonga said it was a team effort.
"This weekend we won with the group," he said. "They played really well in the doubles and gave me the opportunity to finish, so today is the win of the group."
France has nine Davis Cup titles, but it last won in 2001.
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Wimbledon doubles champions Nicolas Mahut and Pierre-Hugues Herbert fought past Lukas Rosol and Radek Stepanek 6-1 3-6 6-3 4-6 6-4 on Saturday to give France a 2-1 lead.
On Friday, Rosol beat Tsonga in a five-setter, and Lucas Pouille made a victorious Davis Cup debut by beating Vesely in straight sets.
