"It really shows the fine line between success and failure," said Pulis. "Between their two goals, we looked the side who were more likely to get the next goal in the game and we had some good chances when luck wasn't on our side.
"We hit the woodwork twice and who knows what might have happened if one of those had gone in, while I also felt we should have had a penalty. The challenge on Jon Walters was as good as our forwards on the Fiji players in the Rugby World Cup."
The defeat has left the Potters in eight place in the Premier League table.