Blackburn boss Sam Allardyce has revealed Stephen Warnock was not in the right frame of mind to tackle Sunderland.
The versatile defender, who can also operate in midfield, has been heavily linked with an £8million switch to Premier League rivals Aston Villa.
Allardyce held talks with the former Liverpool player before naming his side and decided the best course of action was for Warnock to remain in the North West.
The Rovers boss said: "He is at home because he struggled to focus on this game and didn't feel that mentally he was capable enough of giving his best, so we both took the decision to leave him back at Ewood.
"There have been no developments on the transfer front, but he didn't feel and I didn't feel that it was the right thing to do to play him."
Asked if Warnock could leave before the transfer window closes, Allardyce said: "We will wait and see what next week brings.
"But we haven't had anything near a bid we could consider to be enough, so he is still our player and I envisage he still will be our player.
"If anything, from my point of view, we need him to be our player even more because of Ryan Nelsen's injury."