World No.2 Victoria Azarenka pulled out of Wimbledon . and I knew I was in serious trouble then . Azarenka suffered a knee injury Monday 's first round win over Maria Joao Koehler of Portugal . Switzerland 's Jo - Wilfried Tsonga also withdrew with ankle and knee problems . The tournament hit back at Azarenka 's injury .
World No.2 Victoria Azarenka pulled out of Wimbledon . Azarenka suffered a knee injury Monday 's first round win over Maria Joao Koehler of Portugal . Switzerland 's Jo - Wilfried Tsonga also withdrew with ankle and knee problems . The tournament hit back at Azarenka 's injury .