Warner has played in all five league fixtures to date, while Sullivan stepped in with a clean sheet during the the Carling Cup victory over Chester last month.
Midfielders Steve Stone (abductor muscle) and Kevin Nicholls (knee) are both available having returned to training this week, but Leeds face Sunderland at Elland Road three days after the meeting with Wolves, and their comebacks are more likely to wait until then.
Geoff Horsfield serves the final game of his four-match ban tomorrow, while Shaun Derry is recovering from a hernia operation and Gylfi Einarsson is awaiting surgery on his hip.
Jonathon Douglas is in line to make the starting line-up after signing from Blackburn in the hours before the transfer window closed.
United (from): Warner, Sullivan, Kelly, Butler, Kilgallon, Gregan, Foxe, Crainey, Richardson, Douglas, Lewis, Stone, Nicholls, Carole, Blake, Healy, Moore, Beckford.