Sebastian Larsson has revealed Steve Bruce's desire to bring him to Sunderland was a crucial factor in his decision to join the Black Cats.[LNB] The Swedish winger has agreed a deal with the Stadium of Light club and will officially sign on at the start of next month.[LNB]The 26-year-old was out of contract at Birmingham City and it was thought that former club Arsenal wanted him back.[LNB]However, despite Larsson revealing he had offers elsewhere he was keen to re-join Bruce having worked with him at Blues.[LNB]"I had other alternatives but it's great to sign with a club like Sunderland," revealed Larsson.[LNB]"Steve Bruce showed he really wanted me and that's important.[LNB]"Sunderland are building for the future and want to be better than last year."