However, Keegan insists that he was merely resting Smith and has no plans to sell the former Manchester United forward.
"With Alan - he's got a sore ankle," he said.
"I haven't risked anyone in this game and I knew when I left him out it would cause questions, but he's got a sore ankle and I can't treat him any different to anybody else.
"You saw me bringing players off every time they get a knock.
"Every time the doctors or the physios come to me and say, 'Habib Beye - 50 minutes is enough', I've stuck with that.
"I haven't risked anybody, which I think is right and it's given me a chance to give some other people a bit of time."