NHL Live with Bill Pidto and E.J. Hradek, at 5 p.m. ET on NHL Network, welcomes Los Angeles Kings center Anze Kopitar at 5:30 p.m. The NHL's First Star for the week ending Dec. 21 has 10 points in his past four games with six coming on the power play.

The Central Division-leading Chicago Blackhawks are 8-1-1 in their past 10 games and play the Winnipeg Jets at United Center. Eddie Olczyk will join the show from Arena Cam to preview the game.

St. Louis Blues radio analyst Kelly Chase also checks in from Pepsi Center in Denver to preview the Blues' game against the Colorado Avalanche (8 p.m. ET; NBCSN).

Goaltender Jonas Johansson, a third-round pick (No. 61) of the Buffalo Sabres in the 2014 NHL Draft, will not participate in the 2015 IIHF World Junior Championship as a result of an illness, according to the Swedish Hockey Federation.

Sweden will add goalie Fredrik Bergvik (San Jose Sharks) as a replacement for Johansson.

The Pittsburgh Penguins will go with 11 forwards and seven defensemen when they play at the Florida Panthers on Monday (7:30 p.m., SN).

The Penguins on Monday sent forwards Steve Downie and Brandon Sutter, along with goaltender Thomas Greiss, back to Pittsburgh to be tested for the mumps virus.

Goaltender Jeff Zatkoff was recalled from Wilkes-Barre/Scranton of the American Hockey League to be the backup to Marc-Andre Fleury.

Penguins coach Mike Johnston said his plan will be for the seventh defenseman to take shifts at forward.

"We’ll put a defenseman up," Johnston said, according to the Penguins website. "We'll probably play a defenseman up front a little bit and get five, six, seven minutes of a defenseman playing on that [fourth] line and then sort of maneuver from there. We've got to place some depth in our lineup tonight, so that's what I'm going to do originally heading into the game, for sure."

NHL Live with Steve Mears and E.J. Hradek, at 5 p.m. ET on NHL Network, features a one-on-one interview Monday with U.S. forward Jack Eichel at 5:50 p.m., ahead of the 2015 World Junior Championship starting Friday.

It's a six-game night across the League with the Columbus Blue Jackets hosting the Nashville Predators. We'll go out to Nationwide Arena and welcome in Predators color analyst Stu Grimson on Arena Cam at 5:40 p.m. to preview the matchup.

The Pittsburgh Penguins visit the Florida Panthers at BB&T Center. Panthers broadcaster Steve Goldstein will join us via Arena Cam with all the latest on these teams.

Center Curtis Lazar was named captain of the Canadian National Junior Team that will compete in the 2015 IIHF World Junior Championship in Montreal and Toronto beginning Dec. 26, according to Hockey Canada.

Lazar, a first-round draft pick (No. 17) by the Ottawa Senators in the 2013 NHL Draft, played for Canada at the 2014 WJC in Malmo, Sweden. He had three goals and seven points as Canada finished fourth.

Additionally, forwards Sam Reinhart (Buffalo Sabres) and Connor McDavid (2015 draft eligible) will serve as alternate captains.

Defenseman Michael Downing, a Florida Panthers prospect, was released from the United States National Junior team on Monday.

Downing, a 6-foot-3, 192-pound defender, has three goals and seven points in 15 games for the University of Michigan.

The cut leaves the U.S. with 26 players currently in camp for the 2015 IIHF World Junior Championship, including eight defensemen. The final 23-man roster must be submitted by Dec. 25.

The United States begins play at the WJC on Dec. 26 against Finland (3 p.m. ET, NHLN-US) at Bell Centre in Montreal.

U.S. NATIONAL JUNIOR TEAM ROSTER

GOALIES: *Thatcher Demko, Boston College, H-EAST (Vancouver Canucks); Brandon Halverson, Sault Ste. Marie, OHL (New York Rangers); Alex Nedeljkovic, Plymouth, OHL (Carolina Hurricanes)

DEFENSEMEN: *Will Butcher, University of Denver, NCHC (Colorado Avalanche); Brandon Carlo, Tri-City, WHL (2015 draft eligible); Ryan Collins, University of Minnesota, BIG 10 (Columbus Blue Jackets); Anthony DeAngelo, Sarnia, OHL (Tampa Bay Lightning); Noah Hanifin, Boston College, H-EAST (2015 draft eligible); *Ian McCoshen, Boston College, H-EAST (Florida Panthers); *Steven Santini, Boston College, H-EAST (New Jersey Devils); Zach Werenski, University of Michigan, BIG 10 (2015 draft eligible)

FORWARDS: Jeremy Bracco, USA U-18, USHL (2015 draft eligible); J.T. Compher, University of Michigan, BIG 10 (Buffalo Sabres); Cole Cassels, Oshawa, OHL (Vancouver Canucks); Chase De Leo, Portland, WHL (Winnipeg Jets); *Jack Eichel, Boston University, H-EAST (2015 draft eligible); Hudson Fasching, University of Minnesota, BIG 10 (Buffalo Sabres); John Hayden, Yale University, ECAC (Chicago Blackhawks); Dylan Larkin, University of Michigan, BIG 10 (Detroit Red Wings); Anthony Louis, Miami University, NCHC (Chicago Blackhawks); Auston Matthews, USA U-18, USHL (2016 draft eligible); Sonny Milano, Plymouth, OHL (Columbus Blue Jackets); Tyler Motte, University of Michigan, BIG 10 (Chicago Blackhawks); Nick Schmaltz, University of North Dakota, NCHC (Chicago Blackhawks); Alex Tuch, Boston College, H-EAST (Minnesota Wild); Miles Wood, Noble & Greenough School, HS-MA (New Jersey Devils)

*- Returning player

Forward Connor McDavid is expected to play for Canada on Sunday in an exhibition against Sweden leading up to the 2015 IIHF World Junior Championship.

The Canadian Press reported McDavid will be in the lineup at Canadian Tire Centre in Ottawa. It will be the 17-year-old's first game action since breaking his right pinky finger on Nov. 11, playing for the Erie Otters of the Ontario Hockey League.

Mike Cammalleri has been placed on injured reserve retroactive to Dec. 13 with a lower-body injury, the New Jersey Devils announced Saturday.

The forward will be out for New Jersey's game Saturday against the Washington Capitals and is eligible to return Tuesday against the Carolina Hurricanes.

Cammalleri has missed the past three games, and last played Dec. 13 against the Dallas Stars. Playing in his first season in New Jersey, Cammalleri leads the Devils with 11 goals and five power-play goals.

Neither the Devils nor the Capitals had full morning skates Saturday, but New Jersey did make a few moves. Defenseman Adam Larsson and forward Mike Sislo were recalled.

Canada trimmed its roster by four players and finalized its roster for the 2015 IIHF World Junior championship Friday.

The final four players cut from the team were forwards Rourke Chartier (San Jose Sharks), Jason Dickinson (Dallas Stars) and Michael Dal Colle (New York Islanders), and defenseman Haydn Fleury (Carolina Hurricanes).

The final roster decisions were made after Canada lost to Russia 2-1 in overtime in an exhibition at Air Canada Centre on Friday.

The final 22-player roster includes 13 forwards, seven defensemen and two goaltenders.

Among those making the final roster are two top prospects for the 2015 NHL Draft, forwards Connor McDavid and Lawson Crouse.

Goalie Ilya Sorokin made 52 saves to lead Russia past Canada 2-1 in overtime Friday at Air Canada Centre in Toronto in an exhibition game ahead of the 2015 IIHF World Junior Championship.

Sorokin (New York Islanders) faced 14, 20 and 17 shots in three periods, plus two in overtime.

Canada played without top 2015 NHL Draft prospect forward Connor McDavid, who continues to recover from a broken finger.