Murray just the latest to discover he has been writing cheques his body can’t cash
Caroline Wozniacki and Agnieszka Radwanska also get through tricky ties
Winner of Saturday’s decider will take over from Angelique Kerber as world number one
Ostapenko overcomes Wozniacki and rain delays to set up meeting with Bacsinszky
Serena Williams drops first set before staging comeback to book place in next round
Spaniard has dropped only nine games in tournament so far at Roland Garros
Serena Williams survives tough battle and will now face Russian in the semi-finals
Garbiñe Muguruza and Agnieszka Radwanska make up the other semi-finalists
Czech player battled nerves to win in straight sets over to see off Serb
World number one gives up just four games as she powers past helpless Italian
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