Sports events held in empty stadiums due to virus outbreak

TOKYO- Professional baseball games were held behind closed doors across Japan on Saturday amid mounting concerns over the spread of the new coronavirus.

While baseball is one of the most popular sports in the country and is associated with fans cheering and singing in unison at packed venues, four afternoon games were held without spectators.

held  ヘｪﾙﾄﾞ holdの過去形、過去分詞 v)開催する（催しなどをもつ）
stadium　ｽテｲ ﾃﾞｨｱﾑ n)スポーツ競技場
virus　ヴァｲ ﾗｽ　n)病原菌
outbreak　アｳﾄ ﾌﾞﾚｲｸ n)突発、爆発、急激な増加
be held behind closed door 密室、非公開で行なわれる

closed door n)非公開、秘密　closed-door adj)非公開の、締め出した
amid　ア ミｯドｩ 前）<混乱などの>真っ最中に
mounting マ ｳﾝﾃｨﾝｸﾞ adj)徐々に高まっていく n)高まり
concerns ｺﾝ サｧ-ﾝ n)心配、不安
over the spread　一面に広がる
associate ｱ ソウｼｴｲﾄ v)...と結びつけて考える、連想する　associate with...
unison ユ ﾆｽﾝ n)一致、調和　in unison （人と)一致して、一斉に
packed パア ｸﾄｩ adj)満員の、（人で）いっぱいの
venue ヴェ ﾆｭｰ n)会場
spectator ｽ ペｸﾃｲﾀｰ n)（ｽﾎﾟｰﾂ･ｼｮｰなどの）観客、（事件などの)目撃者