9 9 ▁Hoff en heim . ▁ ▁Club ▁career ▁In ▁January ▁ 2 0 1 9 , ▁Ba um gart ner ▁was ▁promoted ▁to ▁the ▁first ▁team ▁squad ▁of ▁ 1 8 9 9 ▁Hoff en heim . ▁He ▁made ▁his ▁debut ▁for ▁Hoff en heim ▁in ▁the ▁Bundes liga ▁on ▁ 1 1 ▁May ▁ 2 0 1 9 , ▁coming ▁on ▁as ▁a ▁half - time ▁substitute ▁for ▁Nad iem ▁Am iri ▁in ▁the ▁ 0 – 1 ▁home ▁loss ▁against ▁Wer der ▁Bre men . ▁ ▁International ▁career ▁Ba um gart ner ▁appeared ▁for ▁the ▁various ▁Aust rian ▁youth ▁national ▁teams , ▁from ▁the ▁under - 1 5 ▁to ▁under - 1 9 ▁se lections . ▁In ▁April ▁ 2 0 1 6 , ▁he ▁was ▁included ▁in ▁Austria ' s ▁squad ▁for ▁the ▁ 2 0 1 6 ▁UEFA ▁European ▁Under - 1 7 ▁Championship ▁in ▁A zer ba ij an . ▁He ▁scored ▁both ▁goals ▁in ▁Austria ' s ▁ 2 – 0 ▁win ▁in ▁their ▁opening ▁match ▁against ▁Bos nia ▁and ▁Herz egov ina , ▁with ▁the ▁team ▁man aging ▁to ▁reach ▁the ▁quarter - final s ▁before ▁losing ▁to ▁Portugal . ▁ ▁He ▁made ▁his ▁under - 2 1 ▁debut ▁on ▁ 1 0 ▁November ▁ 2 0 1 7 , ▁coming ▁on ▁as ▁a ▁substitute ▁for ▁Math ias ▁H ons ak ▁in ▁the ▁ 8 7 th ▁minute ▁of ▁the ▁ 2 0 1 9 ▁UEFA ▁European ▁Under - 2 1 ▁Championship ▁qual ification ▁match