Sunderland have announced the signing of goalkeeper Mika from Portuguese club Boavista.
The 29-year-old has signed a two-year contract at the Stadium of Light and becomes the 10th signing under new boss David Moyes.
Mika, whose full name is Michael Simoes Dominguez, is set to challenge Jordan Pickford and Vito Mannone for the regular number one position.
Pickford has been the only fit senior goalkeeper at the club since Mannone tore elbow ligaments last month, ruling him out until at least November.