The NBA officially warned Sixers guard Royal Ivey for violating its anti-flopping policy on Sunday. Ivey’s flop occurred with a little under 10 minutes remaining in the fourth quarter of a 99-89 road loss to the Grizzlies at the FedEx Forum on Dec. 26. Ivey was defending Jerryd Bayless on the perimeter as Darrell Arthur attempted to set a high screen behind him. Arthur moved into the screen a little bit but made only marginal contact with his hands around Ivey’s waist; nevertheless, Ivey jumped forward and threw both of his arms into the air to simulate a harder hit. Arthur was whistled for an offensive foul for an illegal screen. Video of the flop can be seen here on NBA.com.