LONDON, Oct 25 (Reuters) - Britain"s Co-operative Bank confirmed on Monday that it expressed interest in potentially buying TSB from Spanish lender Banco de Sabadell (SABE.MC). The bank said that it sent a letter to Banco de Sabadell but that no discussions are currently taking place between the two banks. LONDON, Oct 25 (Reuters) - Britain"s Co-operative Bank confirmed on Monday that it expressed interest in potentially buying TSB from Spanish lender Banco de Sabadell (SABE.MC). The bank said that it sent a letter to Banco de Sabadell but that no discussions are currently taking place between the two banks. Sabadell (SABE.MC) said on Saturday its board has rejected an offer from Co-operative Bank for its British subsidiary, after Sky News first reported about the approach. read more