▁bas eman ▁in ▁the ▁Chicago ▁C ubs ▁organization . ▁ ▁Career ▁Str ump f ▁attended ▁J Ser ra ▁Catholic ▁High ▁School ▁in ▁San ▁Juan ▁Cap ist rano , ▁California . ▁During ▁his ▁fresh man ▁year , ▁he ▁committed ▁to ▁play ▁college ▁baseball ▁at ▁U CLA . ▁After ▁his ▁fresh man ▁year , ▁he ▁played ▁on ▁the ▁USA ▁Baseball ▁ 1 5 U ▁National ▁Team , ▁helping ▁Team ▁USA ▁win ▁a ▁gold ▁medal ▁in ▁Bar ran qu illa , ▁Colombia . ▁He ▁was ▁not ▁draft ed ▁out ▁of ▁high ▁school ▁in ▁the ▁ 2 0 1 6 ▁ML B ▁draft ▁and ▁thus ▁en rolled ▁at ▁U CLA . ▁ ▁In ▁ 2 0 1 7 , ▁Str ump f ' s ▁fresh man ▁year , ▁he ▁appeared ▁in ▁ 5 5 ▁games ▁( making ▁ 5 4 ▁starts ), ▁hitting ▁. 2 3 9 ▁with ▁seven ▁home ▁runs ▁and ▁thirty ▁R B Is . ▁That ▁summer , ▁he ▁played ▁in ▁the ▁North wood s ▁League ▁where ▁he ▁was ▁named ▁an ▁All - Star ▁after ▁batt ing ▁. 3 3 5 ▁with ▁six ▁home ▁runs . ▁As ▁a ▁s oph om ore ▁at ▁U CLA ▁in ▁ 2 0 1 8 , ▁Str ump f ▁started ▁ 5 8 ▁games ▁in ▁which ▁he ▁slash ed ▁. 3 6 3 /. 4 7 5 /. 6 3 3 ▁with ▁ 1 2 ▁home ▁runs ▁and ▁ 5 3 ▁R B Is ▁and ▁was ▁named ▁to ▁the ▁Pac - 1 2 ▁First ▁Team . ▁After ▁the ▁season