Nathan Baker has been ruled out of Saturday's Barclays Premier League clash against Liverpool.

Baker is still recovering from the mild concussion he suffered in the 2-1 defeat to Arsenal on Monday night.

The 22-year-old defender came off in the first half after receiving a blow to the head from a powerful shot by Gunners midfielder Serge Gnabry.

Manager Paul Lambert revealed Baker is still feeling "groggy" from the incident.

Chris Herd is set to miss out again with a hamstring problem.

But full-back Joe Bennett is back in contention after returning to training following a back injury.

"Nathan is still not feeling good," said Lambert.

"He's still feeling a bit groggy with a sore head. He won't be available.

"Everybody else is pretty good at the minute.

"Joe has trained over the last few days as well which is pleasing."

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