A third reigning world champion , Helen Maroulis , is ranked No. 1 at 55kg ( 121 lbs ) .
A third reigning world champion , Helen Maroulis , is will wrestle in the 53kg ( 117 lbs ) division in Rio .
A third reigning world champion , Helen Maroulis , is ranked No. 1 at 55kg ( 121 lbs ) but will wrestle in the 53kg ( 117 lbs ) division in Rio .