Bennett did not report any problems during the loss against the Giants, but he's since complained of headaches, fogginess and that "his eyes were hurting," coach Wade Phillips said.
Bennett has seen a specialist and continues to be monitored.
In his second season, Bennett is sixth on the team with 15 catches for 159 yards. Dallas uses two tight ends on most plays.
If he misses the game, rookie John Phillips likely would handle most of Bennett's usual workload.