Sheffer was selected in the
1996 NBA draft, by the
Los Angeles Clippers, with the 36th overall pick, but he chose to sign with
Maccabi Tel Aviv. After four years with Maccabi, where he won four straight
Israeli League championships and played in the
2000 EuroLeague Final Four, Sheffer retired suddenly, walking away from the public's eye, to travel the world, to
India,
South America, and
Costa Rica. During this time, he had a
cancerous tumor removed from his testicle. Despite the illness, and the time away from basketball, Sheffer decided to make a comeback. After finishing his contract with Maccabi, he signed with
Hapoel Jerusalem. In 2004, he won the
ULEB Eurocup (
EuroCup) championship with Hapoel. Sheffer retired again in 2005, and then made another comeback in 2006. He then retired again in 2008. 5 years later, in 2013, he made a final comeback to the game, before finally retiring in 2014. ==National team career==