Aston Villa were beaten 3-1 by Sunderland at the weekend.
Traore was only brought on during the second half of the contest, but his performance was a rare positive for Villa.
The former Barcelona winger showed his attacking threat during his cameo, and he set up Villa’s equalising goal, by crossing for Carles Gil.
Although the Claret and Blues would concede twice more after that strike, Traore was one of the few Villa players to avoid criticism.
Some supporters of the Midlands club were, therefore, bemused when Garde decided to replace him with Scott Sinclair in the latter stages - but the French boss insists that the substitution only took place because of injury.
"I think he got a kick on his foot. He tried to carry on but I had to get him off,” Garde said to the Birmingham Mail.
"Yes, he came off because he was injured.”
Villa will be hoping Traore’s injury is not a serious one, and they will also be sweating on Alan Hutton’s fitness, after the Scotland international was also taken off early at the Stadium of Light.
"I didn't speak to the doctor but it looks like a hamstring,” Garde added.
Villa’s defeat to Sunderland has extended their winless run in the Premier League to 19 games.
Garde’s men are now 11 points away from safety, and they looked doomed at this early stage of the season.