ST KILDA forward Paddy McCartin is available for selection this week after recovering fully from his third concussion of the season.

McCartin, 20, was concussed in the first quarter of the round 15 clash against Gold Coast. He passed the concussion test at the time but sat out the rest of the game as the club opted to take a conservative approach with the first player drafted in 2014.

• The injury list: Your club's sidelined players

St Kilda football manager Jamie Cox told saints.com.au McCartin had joined in full training.

"Paddy's been symptom-free for the best part of a month," Cox said.

"He's been training strongly during that time and is now back in full contest training.

"His most recent MRI scans were all clear last week.

"We expect Paddy to be fully fit and available for selection this week. Whether that's through the VFL or the AFL, we'll determine a bit later in the week."

McCartin has been concussed five times since 2014.

His coach Alan Richardson indicated after the win against the Western Bulldogs last Saturday night that McCartin would likely return via Sandringham.

"I'm not sure whether Paddy would come straight back into the AFL team. He's had a bit of a lay-off now, so there's every chance that he'd come back through the VFL," Richardson said.

Key defender Sam Fisher should also be fine to resume this week. He strained a hamstring ahead of the round 11 match versus Adelaide, and then suffered a setback a few weeks later.

The 34-year-old is out of contract at the end of the season.

"Sam's been training strongly now for a couple of weeks. He's a test this week but looks positive and looks likely to return to football this week," Cox said.