Phoenix Mercury center returned to U.S. on Dec. 9
WNBA star released in exchange for Russian arms dealer
Olympic Gold medalist detained in Moscow in February
WNBA star remains in Russian penal colony
Reuters noted WNBA star is in country's Mordovia region
WNBA star's lawyers say whereabouts are unknown
WNBA star convicted of drug trafficking, sentenced to nine years in penal colony
WNBA star convicted of smuggling drugs into country
WNBA star remains in Russian jail after drug smuggling conviction
Two presidents to attend next month's G-20 meeting in Bali