0 1 5 ▁season , ▁D aven port ▁and ▁her ▁husband ▁Jon ▁Le ach ▁joined ▁Ke ys ' s ▁co aching ▁team . ▁During ▁this ▁year , ▁Ke ys ▁also ▁worked ▁with ▁doubles ▁legend ▁Lisa ▁Raymond . ▁Despite ▁a ▁break through ▁season , ▁Ke ys ▁left ▁all ▁three ▁at ▁the ▁end ▁of ▁the ▁year ▁in ▁search ▁of ▁a ▁coach ▁who ▁would ▁be ▁available ▁for ▁a ▁more ▁full - time ▁role . ▁In ▁the ▁first ▁half ▁of ▁ 2 0 1 6 , ▁Ke ys ▁h ired ▁J esse ▁Lev ine ▁to ▁coach ▁her . ▁During ▁this ▁period , ▁she ▁also ▁worked ▁with ▁M ats ▁Wil ander ▁for ▁about ▁a ▁week , ▁which ▁amount ed ▁to ▁little . ▁Near ▁the ▁start ▁of ▁the ▁cl ay ▁court ▁season , ▁Ke ys ▁replaced ▁Lev ine ▁with ▁Thomas ▁H ög sted t . ▁With ▁this ▁partners hip , ▁Ke ys ▁had ▁a ▁fant astic ▁second ▁half ▁of ▁the ▁year ▁that ▁cul min ated ▁in ▁her ▁debut ▁at ▁the ▁W TA ▁Final s . ▁Non eth eless , ▁Ke ys ▁split ▁with ▁H ög sted t ▁after ▁the ▁season ▁due ▁to ▁a ▁" person ality ▁conflict ." ▁In ▁spite ▁of ▁the ▁split , ▁Ke ys ▁did ▁believe ▁that ▁H ög sted t ▁helped ▁her ▁game ▁a ▁lot . ▁ ▁Ke ys ▁reun ited ▁with ▁D aven port ▁at ▁the ▁beginning ▁of ▁ 2 0 1 7 . ▁Mid way ▁through ▁the ▁year , ▁she ▁also ▁started ▁to ▁work ▁with ▁Di eter ▁Kind l mann . ▁Although ▁Ke ys