▁Ke ys ▁has ▁never ▁be aten ▁Ser ena ▁in ▁three ▁attempts ▁but ▁she ▁does ▁have ▁a ▁ 3 – 2 ▁record ▁against ▁Ven us . ▁ ▁Ke ys ▁first ▁played ▁Ven us ▁in ▁the ▁semif inals ▁of ▁the ▁ 2 0 1 3 ▁Char l eston ▁Open , ▁where ▁Ven us ▁won ▁a ▁tight ▁match ▁against ▁an ▁ 1 8 - year - old ▁Ke ys . ▁Their ▁next ▁encounter ▁occurred ▁in ▁Ke ys ' s ▁break through ▁tournament , ▁the ▁ 2 0 1 5 ▁Australian ▁Open . ▁Ke ys ▁won ▁their ▁quarter final ▁match ▁in ▁three ▁sets , ▁over coming ▁a ▁lower ▁back ▁injury ▁in ▁the ▁second ▁set . ▁Ven us ▁won ▁their ▁next ▁match ▁loss ▁later ▁in ▁the ▁year ▁at ▁the ▁W TA ▁El ite ▁Tro phy , ▁where ▁she ▁won ▁the ▁title . ▁Ke ys ▁has ▁won ▁their ▁most ▁recent ▁two ▁enc oun ters ▁at ▁the ▁ 2 0 1 6 ▁Canadian ▁Open ▁and ▁the ▁ 2 0 1 9 ▁C inc inn ati ▁Open . ▁ ▁Ke ys ' s ▁first ▁match ▁against ▁Ser ena ▁came ▁right ▁after ▁her ▁first ▁victory ▁over ▁Ven us ▁at ▁the ▁ 2 0 1 5 ▁Australian ▁Open . ▁Ser ena ▁was ▁able ▁to ▁end ▁Ke ys ' s ▁run ▁in ▁the ▁semif inals ▁but ▁offered ▁high ▁pra ise ▁for ▁her ▁oppon ent . ▁At ▁the ▁US ▁Open ▁later ▁that ▁year , ▁she ▁beat ▁Ke ys ▁at ▁a ▁Grand ▁S lam ▁tournament ▁yet ▁again . ▁Their ▁most ▁recent ▁meeting ▁took ▁place ▁in ▁the