Weinberg was born on August 1, 1972 in Tel Aviv, Israel, to Mimi and Moshe Weinberg. His father was the coach of the international wrestling team for Israel and of Hapoel Tel Aviv; he had previously been the Israeli youth wrestling champion, and also held a similar title for 8 years, as the Israeli adult wrestling champion. Weinberg was one month old when his father, as national wrestling coach for Israel and as part of the 1972 Summer Olympics team, travelled to Munich, where he was killed alongside eleven team members in a terrorist attack led by Palestinian terrorist group Black September in the Munich massacre.