Who said "The strongest opponents often bring out the best in you."?

This quote is attributed to Serena Williams.

The strongest opponents often bring out the best in you. - Serena Williams

"The strongest opponents often bring out the best in you."

Serena Williams Strength

Professional Tennis Player American Born 1981 (age 45)

"I really think a champion is defined not by their wins and losses, but by can they keep moving forward after defeat."

"Be bold, be courageous, be your best."

"I really think a champion is defined by their ability to overcome."

"The success of every woman should be the inspiration to another."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."