Gerard Pique is facing a possible suspension after he was sent off during Barcelona's Supercopa de Espana second leg on Monday having told an assistant referee: "I s*** on your whore mother".

The Barcelona defender was dismissed early in the second half of the draw against Athletic Bilbao at Camp Nou as his side was beaten 5-1 on aggregate.

The rant could land Pique in hot water, with the details of his outburst reported in referee Velasco Carballo's report – the center back having raged at the lack of an offside decision against Bilbao striker Aritz Aduriz.

Pique's comments could earn him a suspension of between four and 12 games, with a decision expected before the end of the week.

He will also miss Sunday's La Liga opener against Bilbao at San Mames.