Chris Smith -- a former NFL defensive end who was playing in the XFL this season -- has passed away, according to his agent. He was only 31.
NFL agent Drew Rosenhaus confirmed the devastating news via Twitter on Tuesday, sending condolences to his family, friends, and loved ones.
"Rest in Peace Chris," Rosenhaus tweeted. "We will miss you."
Details surrounding his passing are unknown at this time.
Several tributes from fans and athletes were shared on social media after the announcement, including Buffalo Bills' Shaq Lawson who tweeted, "Man prayers up for Chris Smith family.