BRISBANE Lions captain Tom Rockliff is likely to miss Sunday's final NAB Challenge match against GWS after leaving training on Wednesday with a hamstring niggle.

Although the club has not totally ruled him out, it would be a shock if Rockliff was named to play.

He is in no doubt for round one against West Coast, however.

Rockliff had a back-related hamstring niggle earlier in the pre-season and the club is hopeful it's just a repeat of that.

After last season's disastrous run of injuries, the Lions are being ultra cautious this pre-season.

Rockliff has done a full pre-season of training but will go into the season without a match under his belt after Sunday's contest against St Kilda in Mackay was washed out.

Dayne Beams, Josh Green and Allen Christensen will also miss against the Giants.