By Jesús Aguado and Andres Gonzalez

MADRID/LONDON, May 2 (Reuters) - Spanish bank Sabadell

has turned to Morgan Stanley ( MS ) and Goldman Sachs ( GS )

to advise on options after BBVA's 12 billion

euros ($12.83 billion) takeover offer, three sources with

knowledge of the matter said on Thursday.

BBVA this week said it had approached its smaller rival in

an all-share offer, nearly four years after previous talks on a

merger between Spain's second and fourth-largest lenders

collapsed.

Sabadell, Morgan Stanley ( MS ) and Goldman Sachs ( GS ) declined to

comment.

($1 = 0.9350 euros)