Brooks was making only his eighth appearance of the season, after a torn thigh tendon sustained in the the opening round of the DFB Cup forced him to miss the Wolves' first nine Bundesliga matches of the 2017/18 campaign.
The 25-year-old's last outing came in the 1-1 draw with RB Leipzig on 12 December 2017.
It wasn't quite the comeback Brooks would have had in mind, however.
He was taken off in the 29th minute, already on a yellow card and having seemingly just received his final warning from match referee Tobias Stieler.
Brooks is nearing the end of his first season in a Wolfsburg shirt.
He joined the 2009 Bundesliga champions from hometown club Hertha Berlin in summer 2017, for a fee reported to be the highest ever paid for a USA international.