The Cardinals defensive end slipped the apparent retirement announcement into a Twitter post about his newborn son. The post features pictures of Watt with his son Koa and his wife Kealia at Arizona’s last home game of the season, which was on Christmas Day this past weekend.

“Koa’s first ever NFL game. My last ever NFL home game,” Watt said on Twitter. “My heart is filled with nothing but love and gratitude. It’s been an absolute honor and a pleasure.”