Let's see......because they don't really care about tennis??
Following your reasoning then we could also wonder how China has not produced a Grand Slam winner yet.
Who fucking care about DC???
And it's not like we've never won it in the last 20 years......
cause China start too late,but na li win the Roland Garros ,although it's women,so China has GS
oh really?u don't care DC?I saw some news that Monfils want to win DC more than GS