ST KILDA veteran Robert Harvey will have scans today to determine the extent of the hamstring injury suffered in Friday night's loss to Fremantle but the club is confident the 35-year-old's extensive experience of such injuries will ensure his career is not over.

The club was hopeful Harvey, who injured his left hamstring in the first quarter against the Dockers, would miss only three or four weeks.

Harvey told supporters at a function in Perth yesterday he was also optimistic of a fairly swift return.

"It's definitely frustrating, but I am looking forward to overcoming this and returning to the second half of the season," he said.

Harvey, who was due to play his 350th match next week, had been one of the injury-plagued Saints' standout players this season and did not miss a match last year, playing on after a hamstring strain in June was expected to sideline him for three matches. Harvey limped off 20 minutes into the Saints' 15.11 (101) to 6.19 (55) defeat — the latest in a seemingly endless string of injuries to influential Saints stars who have missed games this year, including Lenny Hayes, Aaron Hamill, Brendon Goddard, Raph and Xavier Clarke, Matt Maguire, Leigh Montagna and Jason Gram.

St Kilda football manager Ken Sheldon said the club did not yet have any evidence that Harvey's injury was more severe than a standard hamstring tear, but that the scans would tell them more.

"We'll find out more then, but at the moment we think it will be the usual three to four weeks, and he knows what he has to do," Sheldon said. "He's had a lot of experience with hamstring injuries over time, so he'll be well aware of how to manage himself through it with the right treatment and a lot of diligence.

"There's no thought whatsoever that this will be it for him. He's on the cusp of 350 games and that in itself tells you he knows how to get over injuries and get himself back."

The Saints added only Harvey to their injury list in the 46-point loss, although Fraser Gehrig was hobbling after disembarking from the plane in Melbourne last night. They regained co-captain Hayes from a collarbone injury.

Hayes, who still believes his side is capable of making the finals, said Friday's defeat was doubly hard to swallow after the injury to Harvey.

"We still think we are still a very good chance to make the finals. I think we will get quite a few guys over the next couple of weeks," Hayes said.

"It was disappointing to lose Harvs, because he has been in such great form, and I think it was his 350th next week.

"It is pretty hard to tell until you get the scans done. But he has got a bit of history, so it could be a three or four weeks."

While coach Ross Lyon was downcast after a third interstate loss for the year, he found some positives. "We are a good young group. We get a couple back possibly next week. It's a work in progress," Lyon said.

With AAP