▁Wang ▁Ha o , ▁winning ▁a ▁silver ▁medal . ▁ ▁At ▁the ▁beginning ▁of ▁ 2 0 1 1 , ▁T imo ▁B oll ▁was ▁back ▁at ▁the ▁top ▁of ▁the ▁world ▁rank ings , ▁having ▁be aten ▁Ma ▁Lin ▁in ▁the ▁Volks wagen ▁Cup ▁final . ▁In ▁April ▁ 2 0 1 1 , ▁he ▁was ▁replaced ▁as ▁number ▁ 1 ▁by ▁Wang ▁Ha o . ▁ ▁At ▁the ▁ 2 0 1 1 ▁World ▁Table ▁Tennis ▁Championships ▁in ▁Rot ter dam , ▁B oll ▁won ▁his ▁first ▁singles ▁medal ▁in ▁that ▁competition , ▁a ▁bronze ▁medal , ▁after ▁being ▁be aten ▁ 4 : 1 ▁by ▁  world ▁champion , ▁Z hang ▁J ike . ▁During ▁this ▁championship , ▁B oll ▁decl ined ▁to ▁comp ete ▁in ▁doubles ▁and ▁team ▁matches , ▁foc uss ing ▁instead ▁on ▁the ▁singles ▁competition . ▁Play ing ▁for ▁the ▁German ▁national ▁team , ▁B oll ▁received ▁silver ▁med als ▁at ▁both ▁the ▁Team ▁World ▁Championships ▁ 2 0 1 0 ▁in ▁Moscow ▁and ▁the ▁ 2 0 1 2 ▁champion ships ▁in ▁Dort mund , ▁losing ▁out ▁both ▁times ▁to ▁the ▁Chinese ▁team . ▁ ▁K ne e ▁In j ury ▁and ▁Com eb ack ▁( 2 0 1 5 - 2 0 1 6 ) ▁▁ ▁B oll ▁kept ▁his ▁good ▁form ▁at ▁the ▁Chinese ▁Super ▁League ▁in ▁ 2 0 1 5 , ▁obtain ing ▁a ▁result ▁of ▁ 7 ▁wins ▁and ▁ 5 ▁losses . ▁Due ▁to ▁a ▁kne e ▁injury ,