Gary Ablett at training late last year.

Geelong will take no risks with Gary Ablett after he sent a slight scare through the Cats' camp on Thursday when he left the ground during match simulation with hamstring tightness.

Although the incident, that is understood to have occurred when Ablett went for a mark, caused some anxious moments, football manager Simon Lloyd said the early signs were positive.

He confirmed to The Age that Ablett left the ground with hamstring tightness and said the Cats would explore what may have caused the issue to ensure Ablett was right to go round one when Geelong meets Melbourne.

"He's had a really good summer on the track so we are just being cautious at this time of the year, as we would with all our players," Lloyd said.