MacPherson was not happy with his side's defending

St Mirren manager Gus MacPherson has warned his players he won't stand for many more performances like the 3-1 Scottish Cup defeat to St Johnstone.

"There are quite a few of them playing for their futures, there is no doubt about that," he said.

"There is a lot of hard work to be done and we won't accept what we got tonight. The players know that.

"You have to credit St Johnstone for the way they started and the quality of the goals but it was naive defending."