Kirby Lee-USA TODAY Sports

Fred Warner and Dre Greenlaw are arguably the best linebacker duo in the NFL, serving as the heart of the San Francisco 49ers defense while sharing a strong bond. Therefore, it's no surprise that Warner felt deeply for his teammate and friend when Greenlaw suffered a torn Achilles in the second quarter of Super Bowl 58 against the Kansas City Chiefs.

The following video captures Warner's raw emotional response after Greenlaw was carted off the field, revealing the profound anguish experienced by the star linebacker, even as teammate Nick Bosa attempted to console him.

After the game, tight end George Kittle shared his thoughts on Greenlaw's injury, saying, " That's depressing to get injured in the Super Bowl. ... Dre's the heartbeat of our defense, him and Fred in there, and how they feed off each other. ... We lose a guy like Dre, it's tough. He's just such a fantastic football player, and he's everything that the Niners stand for. So to lose him, it just really, really sucks for him."

While speaking to reporters on Tuesday, Warner provided insight into Greenlaw's mental state in the aftermath of the injury and Super Bowl defeat.

"Obviously, he's down, but he has a good mindset about it, and he's just eager to get the surgery done so he can get right into rehab and get back to work," Warner said. "I have no doubt in my mind he'll come back better than he was. He's made of the right stuff, and, yeah, he'll be back."

San Francisco lost the game 25-22 in overtime.

More must-reads:

TODAY'S BEST
Atlanta to be first race of NASCAR's In-Season Tournament
West Point alum made history in his MLB debut with Reds
Heat legend cautions Lakers against hiring JJ Redick
Welcome to the WNBA: Caitlin Clark sets infamous record in debut
Jalen Brunson leads Knicks to blowout win in Game 5 vs. Pacers
Nikola Jokic torches DPOY to lead Nuggets past Wolves in Game 5
Oilers use late heroics to tie Canucks at two games each
Watch: Astros pitcher ejected after foreign substance check
Kirk Cousins not angry with Falcons because winning is 'hard enough'
Bronny James has surprising comments on potentially teaming up with LeBron
Bills add two-time Super Bowl champ to new-look WR room
Brewers lose team-leading home run hitter to injured list
Sandy Alderson denies involvement in Mets, Billy Eppler IL controversy
Twins reliever shut down for six weeks with patellar tendon tear
Chris Finch throws shade at Nuggets star over Rudy Gobert’s fine
Cardinals head coach warns not to bet against Kyler Murray
Details emerge on Jason Kelce’s role at ESPN
Rangers defenseman wins Mark Messier Leadership Award
Ex-NFL head coach takes over as Arena Football League commish
Yankees young stud takes major step in return from injury