Jason Giambi failed an amphetamines test within the last year, the Daily News reported Wednesday. The newspaper reported that after the failed amphetamines test, Giambi is subjected to six additional tests for one year. The newspaper did not cite any sources in its report. Giambi declined comment to the newspaper before the Yankees' 7-3 loss to the Red Sox on Tuesday night. The Yankees slugger recently said in a USA Today interview that he was "probably tested more than anybody else."