Serena Williams is a champion in a lot of ways.

The tennis player not only won the opening match against Ana Ivanovic at the WTA Finals today, but also called out Russian tennis chief Shamil Tarpischev for "bullying" her and her sister Venus by referring to them as the "Williams brothers," according to CNN.

Williams decided to call out Tarpischev for his comments over the weekend, before her win at the WTA Finals in Singapore.

"I think the WTA did a great job of taking initiative and taking immediate action to his comments. I thought they were insensitive and extremely sexist as well as racist at the same time," stated Serena Williams.

Shamil Tarpischev has reportedly been banned by the WTA for a year and fined $25,000 and has also made a public apology.

Williams added, "I thought they were in a way bullying. But the WTA and the USTA (U.S. Tennis Association) did a wonderful job of making sure that - in this day of age, 2014 for someone with his power, it's really unacceptable to make such bullying remarks."

Tarpischev, who referred to the comment as a "small joke," was also slammed by fellow tennis player Maria Sharapova.

"i think they were very disrespectful and uncalled for, and I'm glad that many people have stood up, including the WTA," stated Sharapova.

Despite the recent controversial incident, Serena Williams isn't letting anything overshadow her skills or hinder her chance of winning her third straight title at the WTA Finals.

There had been speculation that Williams wouldn't be able to play at the competition, but the tennis champion has pulled through.

"They [doctors] thought it was very bad for me to hit sooner than that. After that, I just, like I said, started training. I was surprised at how well I was able to kind of jump back into it," stated Williams, according to the Associated Press.