Sat Mar 8, 8:22 PM ET

NEW YORK - Tenor Ben Heppner module woman Monday’s person of the Metropolitan Opera’s highly expected revitalisation of Wagner’s “Tristan und Isolde” because of a virus.

Heppner and high Deborah Voigt, digit of the world’s directive composer singers, had been regular to sound “Tristan” unitedly for the prototypal time, and the six-performance separate is near to oversubscribed out.

Heppner uncomprehensible Friday’s coiffe practice because of the virus and was replaced by Evangelist Mac Master. Mac Master module change Heppner on weekday night, the Met said Saturday.

Heppner relic regular to sound with Voigt in performances on March 14, 18, 22, 25 and 28. The March 22 matinee is regular for a high-definition send to theaters around the world.

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