In the closing seconds of the Raptors' 93-92 loss to the Hawks, Toronto's DeMar DeRozan grabbed the rebound of a missed shot by teammate Alan Anderson and had his attempt under the basket blocked by the Hawks' Al Horford. There was apparent contact from Horford on DeRozan, but no foul was called.
Casey and the Raptors wanted a foul called during the intense exchange, but no whistle meant the Hawks survived for the win. Casey charged onto the court with his arms extended, demanding an explanation.
During his postgame news conference he said his initial belief a foul should have been called was supported by his review of the video.