Mark McGwire was clearing Fenway Park's Green Monster with EASE during the 1999 Home Run Derby. Don't forget to subscribe! youtube.com/MLBClassics And check out some of our playlists ... youtube.com/playlist?list=PLi70flcQkwNuov3endC_2fuA61ftYD0CB&si=tvj8f7KqBOR8X_av youtube.com/playlist?list=PLi70flcQkwNvxC7kKFsUKKaH810CZlRfW&si=SKwh-kCbW5DLZ3Jt youtube.com/playlist?list=PLi70flcQkwNsG0dd7rWVLEI5VCY9dieDE&si=0Bu8P_NkbtkaZmTK Follow us elsewhere too: YouTube: youtube.com/@MLB Twitter: twitter.com/MLB & twitter.com/MLBVault Instagram: instagram.com/mlb & instagram.com/mlbvault Facebook: facebook.com/mlb TikTok: tiktok.com/@mlb Visit our site for all baseball news, stats and scores! mlb.com #mlb #baseball #sports #mlbvault #baseballhighlights #baseballhistory #sportshistory #markmcgwire #homerunderby