Dreliozis made his pro debut in 1990, with
Panionios, at the age of 15 years and 6 months. He was the youngest player to have played in
the top-tier level Greek Basket League, from the time the league had formed into the A1 national category, in the 1986–87 season.
Georgios Papagiannis holds the current mark for being the youngest player to play in the league, under its current format (since 1992–93). Dreliozis was the first Greek basketball player to use the
Bosman ruling, when he signed with the
Italian League club
Libertas Forlì, in 1996. ==References==