Heidenheim's on-loan midfielder Eren Dinkci scored twice in a 4-2 win against his parent club Werder Bremen on Sunday to give the promoted side their first ever Bundesliga victory. Bremen-born Dinkci, who joined Heidenheim on loan from Werder in July, scored either side of half time as the Bundesliga newcomers prevailed in one of two six-goal thrillers in the Bundesliga on Sunday.