rtokens: Buddy Groom pitched a perfect ninth inning .
pos: NN ( CD ) VBD DT JJ JJ NN NN .
tokens: Telgheder ( 2-5 ) snapped a personal three-game losing streak .
ltokens: In Oakland , Dave Telgheder scattered seven hits over eight innings and Mark McGwire hit his major-league leading 45th homer and drove in three runs as the Athetlics blanked the Boston Red Sox 7-0 .