Tā zài Fǎwǎng shàng nádào le zhíyè shēngyá dìyī gè dà mǎnguàn guànjūn.
He won his first Grand Slam title at the French Open.
Tips
usage
法网 has two distinct meanings depending on context. 法网 (lowercase sense) = the net of justice (legal). 法网 (tennis) = the French Open, short for 法国网球公开赛. Context makes it clear.
