Defender Devera had to go off just before half-time during the 1-1 draw after taking a knock to his knee.
"He got caught from the side and said he heard a big click in his knee," said Barker.
"It was really sore, but I've spoken to him since and he feels a bit better."
Devera was replaced by Sonny Bradley, who could now be in line to start against AFC Wimbledon next weekend.
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