PORT ADELAIDE defender/forward Lachie Jones won’t play again this season with the 20-year-old to undergo surgery on a hamstring injury.

Jones suffered a hamstring strain in Round 16 and missed three games before returning to face Collingwood last weekend.

He re-injured the hamstring tendon this week and will undergo a surgical repair in the coming days.

Jones will be given an extended period of rehabilitation and is expected to return in time to complete a full pre-season.