The Aston Villa manager is confident the striker will be fit to face West Brom after picking up a knee injury on international duty with Belgium against Colombia
The striker suffered a knee injury in Belgium's friendly against Colombia and limped out of training with the national team last Sunday as he was still feeling discomfort.
However, Villa manager Lambert has revealed the powerful frontman stands a good chance of facing the Baggies and expects Andreas Weimann, Antonio Luna, Ciaran Clark, Brad Guzan and Fabian Delph to be fit, while Gabriel Agbonlahor will be assessed as he continues to suffer with an ankle problem.
"Christian seems okay," Lamberto told reporters. "He got a knock on his knee, as everybody knows, but he trained today [Friday].
"Andi [Weimann] will be fine. Ciaran will be okay. Obviously he missed the Ireland game but hopefully that will have done him the world of good.
"We'll see how Gabby [Agbonlahor] is. He is doing really fine at the minute. He hasn't done much up until now. He looks ok.
"Fabian is the same. He is another one who hasn't done much since he has been injured but hopefully he'll be available.
"Luna has trained as well so that's another one that is available. The international break probably came at a good time for us. The only thing that is missing is that they haven't done much, apart from Christian."
Villa beat Cardiff City 2-0 before the international break and will be looking to build on the result when Lambert's men make the short trip to The Hawthorns.