Angelique Kerber wins Australian Open 2016

Angelique Kerber celebrates with the trophy after winning her final match against Serena Williams at the Australian Open. (Reuters Photo)

Australian Open runner-up Serena Williams and winner Angelique Kerber pose with their trophies. (Getty Images)

Angelique Kerber poses with the Daphne Akhurst Trophy after winning the women's singles final against Serena Williams. (Getty Images)

Angelique Kerber is presented with the Daphne Akhurst Trophy after winning the women's singles final of the 2016 Australian Open at Melbourne Park. (Getty Images)

Angelique Kerber (R) laughs with Serena Williams as she holds the trophy after winning their final match at the Australian Open. (Reuters Photo)

Angelique Kerber poses with the Daphne Akhurst Trophy at Melbourne Park. (Getty Images)

Angelique Kerber speaks after winning the women's singles final of the Australian Open against Serena Williams. (Getty Images)

Angelique Kerber hits a shot during her final match against Serena Williams at Melbourne Park. (Reuters Photo)

Angelique Kerber signs autographs while holding the trophy after winning the women's singles final of Australian Open 2016. (Reuters Photo)

Angelique Kerber serves in her women's singles final match of the 2016 Australian Open against Serena Williams at Melbourne Park. (Getty Images)

The sun sets at Rod Laver Arena as Germany's Angelique Kerber hits a shot during her final match against Serena Williams of the U.S. at the Australian Open. (Reuters Photo)

Serena Williams hits a shot during her final match against Angelique Kerber at the Australian Open. (Reuters Photo)

Angelique Kerber stretches for a shot during her final match against Serena Williams at the Australian Open. (Reuters Photo)

Serena Williams stretches for a shot during her final match against Angelique Kerber at the Australian Open. (Reuters Photo)

Angelique Kerber celebrates winning the women's singles final. (Getty Images)

Angelique Kerber poses with the trophy in the locker room. (Reuters Photo)

Angelique Kerber of Germany kisses the Daphne Akhurst Trophy after winning the women's singles final against Serena Williams of United States. (Getty Images)