Day twelve - US Open

Day twelve at the US Open and it was ladies semi finals day. In the first semi-final Caroline Wozniacki beat Shuai Peng after Shaui retired in the second set. 

It was rather tragic way to get to the finals for Caroline but she played well and sized her opportunity. 

Second semi finals Serena Williams beat Ekaterina Makarova in straight sets and a Serena played a near perfect game of tennis to secure the win and move to the finals.