▁in ▁ 2 0 0 3 , ▁retired ▁from ▁professional ▁tennis ▁with ▁his ▁loss ▁against ▁ 2 0 0 9 ▁champion ▁Juan ▁Martín ▁del ▁Pot ro ▁in ▁the ▁fourth ▁round . ▁ ▁Rob son ▁followed ▁up ▁her ▁ups et ▁of ▁C lij sters ▁with ▁a ▁third ▁round ▁victory ▁against ▁Li ▁Na , ▁making ▁the ▁fourth ▁round ▁of ▁a ▁Grand ▁S lam ▁tournament ▁for ▁the ▁first ▁time , ▁and ▁this ▁was ▁also ▁the ▁first ▁British ▁woman ▁to ▁reach ▁the ▁fourth ▁round ▁in ▁any ▁Grand ▁S lam ▁since ▁Sam anth a ▁Smith ▁did ▁so ▁in ▁ 1 9 9 8 ▁W im ble don . ▁On ▁September ▁ 3 , ▁John ▁Is ner ▁and ▁Philipp ▁K ohl sch rei ber ▁finished ▁play ▁at ▁ 2 : 2 6 ▁am , ▁t ying ▁the ▁ 1 9 9 3 ▁M ats ▁Wil ander / M ika el ▁P ern f ors ▁record ▁for ▁the ▁latest - ever ▁finish ▁to ▁a ▁match day ▁at ▁the ▁tournament . ▁ ▁Ser ena ▁Williams ▁won ▁ 2 3 ▁consecutive ▁games ▁from ▁ 4 – 4 ▁in ▁the ▁first ▁set ▁against ▁Ek ater ina ▁Mak ar ova ▁in ▁the ▁third ▁round ▁through ▁to ▁ 3 – 0 ▁in ▁the ▁first ▁set ▁against ▁Ana ▁Ivan ov ic ▁in ▁the ▁quarter - final s . ▁After ▁ 1 7 ▁consecutive ▁Grand ▁S lam ▁tournament s ▁without ▁a ▁quarter - final ▁appearance , ▁Ivan ov ic ▁reached ▁that ▁stage ▁for ▁the ▁first ▁time ▁since ▁winning ▁the ▁ 2 0 0 8 ▁French ▁Open .