Watt, who had one tackle, aggravated a groin injury and left the game in the third quarter. After being examined, he lobbied the medical staff to let him continue playing, but they wouldn't allow it.
"It was terrible to not be out there with my teammates," Watt said. "I have been trying to do whatever I possibly can to be out there with them, and I tried to do, today, whatever I could to be out there with them. But there comes a time when you are doing more harm than good and when you can't go, you can't go. It was extremely difficult."
He tweeted this after the game:
I am sorry. Thank you for your support all year.
— JJ Watt (@JJWatt) January 10, 2016
And here's Schwarzenegger's response, which includes one of his famous lines -- "Hasta la vista, baby:"
— Arnold (@Schwarzenegger) January 10, 2016
This isn't the first time Watt and Schwarzenegger have interacted on social media, or in real life. Over the summer, Schwarzenegger shared a photo of him and Watt on Instagram after a night of dinner and ... squats.