Speaking to Sky Sports after the game, the Bournemouth boss said: "I believe completely it was a penalty [for Christie]. Against Newcastle the penalty against us, the contact started outside the box.
"But [today] the first frame was put so the first contact was on the edge of the box, but the contact continues one, two metres inside and is stopping the player. It is not just one moment and Christie is down. The defender goes with Christie one, two metres inside the box. For me it is obvious.
"In the first half Kobbie Mainoo dives and it is not a yellow card, second half Ryan Christie, there is contact and he falls down, but yellow card for diving. What is the difference?"