![Maria Joao Koehler of Portugal watches a ball as she returns to Roberta Vinci of Italy during the Estoril Tennis Open in Jamor May 2, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags: Maria Joao Koehler of Portugal watches a ball as she returns to Roberta Vinci of Italy during the Estoril Tennis Open in Jamor May 2, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags:](https://c8.alamy.com/comp/2CYNR8R/maria-joao-koehler-of-portugal-watches-a-ball-as-she-returns-to-roberta-vinci-of-italy-during-the-estoril-tennis-open-in-jamor-may-2-2012-reutersjose-manuel-ribeiro-portugal-tags-sport-tennis-2CYNR8R.jpg)
Maria Joao Koehler of Portugal watches a ball as she returns to Roberta Vinci of Italy during the Estoril Tennis Open in Jamor May 2, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags:
![File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709500263).jpg - Wikimedia Commons File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709500263).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/94/2013_US_Open_%28Tennis%29_-_Qualifying_Round_-_Maria_Joao_Koehler_%289709500263%29.jpg)
File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709500263).jpg - Wikimedia Commons
![MARIA JOAO KOEHLER PORTUGAL PORTUGAL THE ALL ENGLAND TENNIS CLUB WIMBLEDON LONDON ENGLAND 24 June 2013 Stock Photo - Alamy MARIA JOAO KOEHLER PORTUGAL PORTUGAL THE ALL ENGLAND TENNIS CLUB WIMBLEDON LONDON ENGLAND 24 June 2013 Stock Photo - Alamy](https://c8.alamy.com/comp/HX2MRR/maria-joao-koehler-portugal-portugal-the-all-england-tennis-club-wimbledon-HX2MRR.jpg)
MARIA JOAO KOEHLER PORTUGAL PORTUGAL THE ALL ENGLAND TENNIS CLUB WIMBLEDON LONDON ENGLAND 24 June 2013 Stock Photo - Alamy
![File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709490773).jpg - Wikimedia Commons File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709490773).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/e3/2013_US_Open_%28Tennis%29_-_Qualifying_Round_-_Maria_Joao_Koehler_%289709490773%29.jpg)
File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9709490773).jpg - Wikimedia Commons
![Maria Joao Koehler of Portugal returns the ball to Ayumi Morita of Japan during their women's singles match at the Estoril Tennis Open in Jamor May 1, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Maria Joao Koehler of Portugal returns the ball to Ayumi Morita of Japan during their women's singles match at the Estoril Tennis Open in Jamor May 1, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL -](https://c8.alamy.com/comp/2E69N01/maria-joao-koehler-of-portugal-returns-the-ball-to-ayumi-morita-of-japan-during-their-womens-singles-match-at-the-estoril-tennis-open-in-jamor-may-1-2012-reutersjose-manuel-ribeiro-portugal-tags-sport-tennis-2E69N01.jpg)