Transfer speculation continues to mount as Geny Catamo has been linked in recent days with a move to Sunderland. The midfielder, currently playing for Sporting CP, could add a new dimension to the squad if the rumoured interest turns into an official approach before the end of the transfer window. Talks are underway, and with no competition emerging, Sunderland are seen as the sole contenders for the player's signature. Geny Catamo is expected to make a positive impact at Sunderland, offering fresh energy and broadening their options. Sporting CP continue to be linked with Nestory Irankunda while Sunderland are also rumoured to be tracking Dayann Methalie. More on this story as it develops. Need more Sunderland transfer rumours? Follow @PlayerSwitchCom on Twitter for up-to-the-minute news from Sunderland.