Authors:

I always had a powerful serve. It's one of the best in women's tennis. It's very good to have a weapon like that.

"Wimbledon 2011: Li Na loses way and husband as Sabine Lisicki triumphs" by Paul Hayward, www.theguardian.com. June 23, 2011.
I always had a powerful serve. It's one of the best in women's tennis. It's very good to have a weapon like that.