Theodore was seen grabbing his right side while leaving the ice and was later reported to be getting X-rays on his right wrist/hand.

The Golden Knights announced that Theodore is week-to-week following the incident, raising concerns about his availability.

The NHL's 4 Nations Face-Off, organized as a substitute for the traditional All-Star weekend, serves as a preview for the upcoming Winter Olympics in 2026.

The tournament kicked off with an exciting matchup between Canada and Sweden on February 12, 2025, at the Bell Centre in Montreal.

In a thrilling contest, Canada secured a 3-2 victory over Sweden, with Mitch Marner scoring the overtime winner and Sidney Crosby contributing three assists.

However, the victory came at a cost as Canada defenseman Shea Theodore suffered an injury early in the second period after an awkward hit from Sweden's Adrian Kempe.

Coach Jon Cooper expressed heartbreak over Theodore's injury, noting his positive attitude despite the setback and the team's reliance on just five defensemen for most of the game.

Goaltender Jordan Binnington praised the remaining defensemen for their resilience and effort under pressure after losing a key player.

Travis Sanheim is expected to replace Theodore in the lineup, despite differing playing styles, as Theodore is known for his puck-moving ability while Sanheim is recognized for his physicality.

Due to tournament rules, Canada cannot add new players once the games have begun, leaving them with only six defensemen if Theodore is unable to continue.

Despite the loss of Theodore, Canada still boasts strong puck-moving capabilities with players like Cale Makar, Josh Morrissey, and Devon Toews.

Sanheim, who is 6-foot-4 and weighs 222 pounds, brings a combination of size and mobility to the team, ranking sixth among defensemen for speed bursts in the NHL.