Doblas spent four seasons in the Real Betis B team, where he was the undisputed starter (30,34 and 35 games in his first three years), before moving on loan to Xerez CD.
Doblas spent four seasons in the Real Betis B team. He made 30 appearances in the 1999/2000 season, 34 in 2001/2002 and 35 the following, before moving on loan to Xerez CD.