Mousa departed early from Saturday's 1-0 win against Southampton while Aaron was substituted on the hour mark.
Andre explained both players had 'discomfort and tightness' against the Saints.
"Mousa and Aaron will be selected, whether or not they will be available is something we prefer to hold onto and let people know when we get there," said Andre.
"They had discomfort and tightness against Southampton and we decided not to risk them.
"As we took that decision, it means they are still in the frame for making this game.
"We have one player recovered, Jake Livermore, and three players out - Sandro, Gallas and Kaboul."