The Villa manager snapped up Sylla from Clermont Foot, while Dawkins joined the struggling Birmingham side on loan from Tottenham Hotspur.
With Lambert’s side dropping into the relegation zone following a 2-1 loss to Newcastle United midweek, the Scotman is hoping the duo can help bolster their chances of securing Premier League survival.
“The lad Sylla will come in and will give us something we don’t have with a bit of steel. He’ll give us something in the middle of the pitch we haven’t got.
“He will get stuck right in and you need players to do the dirty work.
“Simon can play anywhere. He will surprise people with the way he plays the game. He will create and make things happen.
“He can play anywhere across the middle. He had a spell in America (with San Jose Earthquakes) where he has been incredible. He’s been in great form.”