Robert Lewandowski and Raphinha struck twice each as Barcelona romped to a 5-1 win at Villarreal on Sunday in a wild match to maintain their perfect start to La Liga. The leaders’ sixth straight league triumph was marred by a potentially serious knee injury to goalkeeper Marc-Andre ter Stegen, who was taken off on a stretcher.

Villarreal drew with Atletico Madrid before beating Sevilla and Celta Vigo for seven points from a possible nine and they have since added four more points to their tally with a draw at Valencia and a win over Mallorca.