Complex sentence: Beye was linked with a move to former club Newcastle United fierce rivals Sunderland A.F.C. It is thought that if he does in fact make the move to Wearside, he will become a major hate figure to the fans on Tyneside who once adored him.
Split into simpler sentences: Beye was linked with a move to former club Newcastle's fierce rivals Sunderland. If he does in fact make the move to Wearside, he will become a major hate figure to the fans on Tyneside who once adored him.