Mohamed Salah, Liverpool's hotshot Egyptian striker who took his season's tally of Premier League goals into double figures on Saturday with a strike against his former employers, Chelsea.
The match at Anfield ended as a draw, following Willian's late equaliser for the visitors, but the main talking point from the game was how the 25-year-old, who was signed by Liverpool from Roma for £36.9 million during the summer, refused to celebrate his goal in the 65th minute.
Some took to social media to wonder why he had shown respect to Chelsea, a club where he only chalked up 19 appearances across two seasons and where many felt that his considerable talent had been squandered.
Some thought it showed his respect for a former club:
Others felt that he didn't owe the Londoners anything and questioned why he hadn't celebrated:
It soon became apparent that Salah was paying respect to the victims of the Sinai mosque attack that claimed more than 300 lives on Friday, and commentators queued up to praise his decency: