Fremantle defender Hayden Young has been subbed off against Carlton at half time of the round three clash on Sunday at Marvel Stadium.

Young pulled up sore after a contest on the wing late in the second term and Fremantle medical staff confirmed it was a hamstring injury.

He was replaced by medical sub Liam Henry.

In further injury news, Lachie Schultz (concussion) did not take part in the final term after sustaining a head knock.