Real Madrid ended 2025 with three successive wins but their performances were unconvincing and a major improvement may be required if the pressure is to ease on coach Xabi Alonso.
Former Spain midfielder Alonso’s second-placed side were four points behind leaders Barcelona as the action resumed in La Liga.
Betis arrived at the Santiago Bernabeu in confident mood thanks to a run of one defeat in 13 games in all competitions.
They started the new year in sixth and harbouring hopes of a European place.