Brunner ended a four-game point drought with Saturday's performance. He has four goals and three assists in 10 games this season.
Devils coach Peter DeBoer said he doesn't believe the injury is serious but did not provide any further details.
Brunner has three goals in his last two games for the Devils.
Brunner is a nice offensive addition for the Devils after posting 26 points in 44 games during his first NHL season last year with Detroit.
After joining the Devils on a tryout basis on Sept. 16, Brunner has two assists in two NHL preseason games. In 44 games last season with Detroit, Brunner had 12 goals and 14 assists. He added a team-leading five goals and four assists in 14 postseason contests.
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