Eva Evdokimova, brought to Boston Ballet last year by new Artistic Director Mikko Nissinen as ballet mistress, has been fired for “economic reasons.” “Undisputedly one of the world’s finest ballet teachers, Evdokimova is also one of the most acclaimed performers in recent history. Born in 1948, she was the first American to win a gold medal at the 1970 International Ballet Competition in Varna, Bulgaria. She went on to dance with such prominent companies as the Royal Danish Ballet, The Kirov, Paris Opera Ballet, American Ballet Theater and National Ballet of Canada, to mention only a few.”