Saadi is one of the Gadhafi sons, along with Saif al-Arab and Hannibal, described as "ne'er-do-wells" in a 2009 U.S. State Department cable released by the anti-secrecy website WikiLeaks.
"Hannibal and Saadi both have checkered histories of unseemly behavior and public scuffles with authorities in Europe and elsewhere," one cable said.
Saadi played professional soccer in Libya but was never able to make his mark in the far-more competitive Italian football leagues, cycling through three teams between 2004 and 2007 and only appearing in games twice. He reportedly failed a drug test at Perugia and played all of ten minutes for Udinese.
In February, as a popular uprising gained strength and international pressure on Libya increased, Saadi joked in an exclusive interview with ABC News' Christiane Amanpour that he was worried about not being able to go on safari, but called the rising Arab Spring an unstoppable "earthquake."
Saadi was reportedly captured by rebels in August, but later the rebel Libyan ambassador to Washington, Ali Suleiman Aujali, told ABC News that the rebels never claimed they had Al-Saadi in custody.
Though two of Saadi's siblings were reportedly killed in the fighting in Libya, his sister Aisha and brothers Hannibal and Muhammad managed to escape to Algeria in August. Saif al-Islam, one of the most high-profile Gadhafi children and the one U.S. officials saw as a possible heir to the dictatorship, was captured by rebel forces in southern Libya last month.