Orioles promote Gunnar Henderson: Top prospect homers in MLB debut as Baltimore blanks Guardians | CBS Sports Headlines Orioles promote Gunnar Henderson: Top prospect homers in MLB debut as Baltimore blanks Guardians Henderson, 21, was arguably the best prospect in baseball prior to his promotion on Wednesday ESN FeedsThis post … Continue reading Orioles promote Gunnar Henderson: Top prospect homers in MLB debut as Baltimore blanks Guardians