Career
Keler played in 113 Czechoslovak First League matches for Football Club Vítkovice. Keler also had a spell with Le Havre Air Corps in French Ligue 2. Keler scored twice in 17 matches during the inaugural season of the Gambrinus liga, where he played for Football Club Vítkovice.
In 2011 he was announced as the new coach of MFK Havířov.
