After scoring for the Kansas City Chiefs, Husain Abdullah slid on his knees and touched his forehead on the field as a gesture of his Muslim faith. The action drew a flag from an official for breaching the game's "excessive celebration" rule.The referee's decision quickly prompted a negative reaction from social media users."I'm pretty sure the Husain Abdullah just got flagged 15 yards for praying... I don't consider that to be unsportsmanlike," said one Twitter user. "So Husain Abdullah literally just got a 15 yard penalty for being Muslim?" tweeted another.It was not apparent whether the penalty had been given for bowing in prayer or for sliding when he scored. Officials did not speak to him about it after the game. Abdullah, 29, told the Kansas City Star newspaper that his coach had informed him he had been penalised for sliding. "For me, I just got a little too excited," he said.The following morning, NFL VP of Football Communications Michael Signora acknowledged the decision had been a mistake, tweeting that Abdullah should not have been penalised.By that time, however, it was too late to quell the rising outrage. Much was made of Abdullah's devotion to his faith. The player had skipped the entire 2012 season to go on a Hajj pilgrimage to Mecca with his brother, another NFL player. Many tweeters drew a contrast with Tim Tebow, the Christian quarterback noted for kneeling in prayer so often that the practice has become known as "Tebowing".(BBC)Bakudaily.Az