Klejch began playing football in the
Czechoslovak First League, making 149 appearances before the league split in 1992, including 28 appearances for
FC Nitra during the 1990–91 season. He would become the leading goal-scorer in the Slovak second division the following season. Klejch played for
Baník Ostrava and
Svit Zlín in the
Czech First League, scoring a total of 17 goals in 58 appearances over two league seasons. Klejch finished his time in Czechoslovakia, including the successor state Czech Republic, with 58 goals from 208 top flight matches. In July 1995, Klejch joined
Super League Greece side
Panachaiki for the three seasons and would appear in 94 league matches and score 25 goals for the club. ==References==