ers ▁and ▁trad ed ▁a ▁player ▁to ▁be ▁named ▁or ▁c ash ▁to ▁the ▁Oak land ▁Athletics ▁for ▁T ray ce ▁Thompson . ▁ ▁April ▁ 2 7 , ▁ 2 0 1 8 : ▁The ▁So x ▁trad ed ▁a ▁player ▁to ▁be ▁named ▁to ▁the ▁Pitts burgh ▁Pir ates ▁and ▁received ▁Tod d ▁C unning ham . ▁ ▁May ▁ 1 0 , ▁ 2 0 1 8 : ▁So x ▁Release ▁Jorge ▁R ond ón . ▁ ▁May ▁ 1 2 , ▁ 2 0 1 8 : ▁White ▁So x ▁sign ▁Johnny ▁Gia v ot ella ▁as ▁a ▁free ▁agent . ▁ ▁May ▁ 1 5 , ▁ 2 0 1 8 : ▁So x ▁release ▁Tod d ▁C unning ham . ▁ ▁May ▁ 2 0 , ▁ 2 0 1 8 : ▁White ▁So x ▁sign ▁Michael ▁Sau nd ers ▁as ▁a ▁free ▁agent . ▁ ▁May ▁ 2 3 , ▁ 2 0 1 8 : ▁White ▁So x ▁sign ▁Alex ▁Pres ley ▁as ▁a ▁free ▁agent . ▁ ▁May ▁ 2 4 , ▁ 2 0 1 8 : ▁So x ▁catch er ▁Wel ington ▁Cast illo ▁was ▁susp ended ▁for ▁ 8 0 ▁games ▁for ▁viol ating ▁the ▁league ' s ▁performance - en han cing ▁drug ▁policy . ▁White ▁So x ▁select ▁D ust in ▁Gar ne au ▁off ▁wa ivers ▁from ▁the ▁Oak land ▁Athletics . ▁ ▁May ▁ 2 8 , ▁ 2 0 1 8 : ▁So x ▁sign ▁J