Gordon, Turner make successful returns for Sunderland reserves
Gordon hasn't played since last February after struggling with knee trouble while Turner has been out of action since November.
"Most senior players always show a decent attitude and Craig and Michael certainly have that," Bertschin told safc.com.
"Craig is just getting used to things again so the game served a purpose for him.
"Michael wasn't sore or stiff and he certainly wasn't exhausted. We know first-team games are more intense but at least he knows he can get through a game."