La Liga president Javier Tebas has said Barcelona defender Gerard Pique could be punished for shushing Espanyol's fans in their 1-1 draw on Sunday.
Per Sport, he said: "The committee will rule if the gesture is punishable, but we will take it to them for them to make a decision. The regulations make it possible that certain ways of celebrating goals can be considered a provocation."
Pique made the gesture after he headed home the equaliser at the RCDE Stadium to salvage a point for the Blaugrana against their bitter rivals.
ESPN's Samuel Marsden believes the celebration was warranted:
The centre-back has a long history with Espanyol, and some of their supporters often direct insults at his family; his wife Shakira and his son, Milan.