ST. PAUL, Minn. — Already without three of their top defensemen in the lineup, the Toronto Maple Leafs will have to move forward without Jordie Benn.

The 35-year-old injured himself in the second period of the Maple Leafs' 2-1 win against New Jersey Devils on Wednesday. Benn attempted to return in the third period, but left the players' bench and went to the dressing room as the injury proved to be too much to bear.

Benn was placed on the injured reserve on Thursday and will be out of action for at least the team's next four games. Head coach Sheldon Keefe expects him to be out longer than that.

"We won't know the full extent of it yet until we get some pictures done and stuff like that," Keefe said. "I'd call it week-to-week at this point. We don't know how long it will be at this point simply because we know it's going to be more than seven days. Beyond that, we're not quite sure yet."

Benn is the latest Leafs defenseman to be sidelined due top injury. The team has been without Jake Muzzin since Oct. 17 with a cervical spine injury and is out indefinitely. TJ Brodie is not on the team's current road trip as he recovers from an oblique injury. Morgan Rielly is out until Dec. 17 at the earliest with a knee injury.

Benn made his Leafs debut on Nov. 12 against the Vancouver Canucks when Brodie came out due to his injury. Benn had just recovered from a groin injury he sustained against the Montreal Canadiens during a pre-season game in September. 

Victor Mete will slot into Benn's place in the lineup against the Minnesota Wild on Friday, 

Conor Timmons, whom the Leafs acquired in a trade with Arizona Coyotes on Wednesday, took part in his first practice with his new team on Thursday,

The defenseman has been cleared to play but will get into some more skates before making his Leafs debut.

Benn's move to IR made roster room for Wayne Simmonds. The veteran forward slots to add some physicality against a Minnesota Wild team that just acquired Ryan Reaves from the New York Rangers.

More must-reads:

TODAY'S BEST
Suns to hire ex-NBA champion as new head coach
MVP Jokic, Nuggets blow out Timberwolves on road in Game 3
Panthers dominate Bruins again to take 2-1 series lead
ESPN has big plans for Caitlin Clark's WNBA debut
Angels superstar explains why he chose not to play through knee injury
Bears make big, but not surprising Caleb Williams announcement
Cardinals to sign WR who commanded extensive interest
Jayson Tatum refutes narrative that Celtics are a 'superteam'
Watch: Kyle Busch crashes in Truck Series race at Darlington
Oilers work overtime to tie Canucks at 1-1
Broncos release former Super Bowl champion WR
Former NBA big man sentenced to 40 months in prison
Peyton Manning reveals Bill Belichick's role on 'ManningCast' for this season
NBA Hall of Famer questions Knicks longevity in face of high playoff workloads
Falcons rookie QB Michael Penix Jr. details first interaction with Kirk Cousins
Insider reveals Mike Budenholzer's humongous contract figures to be Suns HC
Watch: Novak Djokovic accidentally struck, knocked down by metal water bottle
Legendary Cowboys HC clarifies misunderstanding regarding HOFer's death with same name
Raiders HC names leader in Aidan O'Connell, Gardner Minshew competition
Former MLB infielder Sean Burroughs dies at 43 years old

Want more sports news?

Join the hundreds of thousands of fans who start their day with Yardbarker's Morning Bark, the best newsletter in sports.