Wimbledon 2018: Angelique Kerber credits troubled 2017 for triumph after overcoming Serena Williams

Angelique Kerber believes that she would not have won Wimbledon but for her troubles in 2017, when she fell from No 1 to No 21 in the world rankings as she failed to build on her successes of the previous year. The 30-year-old German won two Grand Slam titles in 2016 and lost to Serena Williams in the final at Wimbledon that year, but struggled throughout the following season.