Chris Lukezic banned two years

COLORADO SPRINGS, Colo. -- The U.S. Anti-Doping Agency has suspended retired distance runner Chris Lukezic for two years for refusing to take an out-of-competition doping test.

Lukezic's ban started Tuesday. He declined to take the test on April 20, so his results since that date were also thrown out.

Colorado Springs-based USADA says the 26-year-old Lukezic, of San Francisco, didn't file the proper paperwork announcing his retirement before refusing to take the test. The agency says the 2006 U.S. Indoor 1,500-meter champion has properly retired from competition since that date.

USADA announced the ban on Thursday.