Jermaine had to be stretchered off at the end of the first half after a clash of heads with Juan Pablo Angel.
Meanwhile, Edgar hobbled off just after the hour mark after a hefty challenge from Gavin McCann.
"Jermaine Jenas has a big lump on his head," reported Head Coach Martin on Saturday night. "Edgar Davids will have a scan. It's a problem with the outside of his knee. Sometimes he gets kicks as well but it's all part of the game."
It was a case of wait and see from Martin Jol on the injuries Jermaine Jenas and Edgar Davids sustained against Villa.