Tavares suffered an oblique strain while training for the IIHF World Championship in Slovakia and will be sidelined for approximately four weeks, Elliotte Friedman of Sportsnet reports.
Dermott will undergo shoulder surgery Friday and is expected to be sidelined for a minimum of six months.
Tavares suffered an oblique injury during Team Canada's practice Thursday and will return to Toronto for further evaluation by the Maple Leafs medical staff.
Tavares suffered an upper-body injury during Team Canada's practice Thursday, Darren Dreger of TSN reports.
Kivihalme signed a one-year, entry-level contract with the Maple Leafs on Tuesday.
Mikheyev agreed to terms on a one-year, entry-level contract with Toronto on Monday.
Scott has been named 2018-19 WHL Goaltender of the Year.
Matthew had surgery to remove hardware from a previous surgery, but shouldn't see any impact on his offseason program.
Matthews will not join Team USA for the 2019 IIHF World Championship, John Shannon of Sportsnet reports.
Korshkov inked a two-year, entry-level contract with Toronto on Wednesday.
Hutchinson was reassigned to AHL Toronto on Friday.
Moore was reassigned to AHL Toronto on Friday.
Kadri regrets the Game 2 cross-check on Boston's Jake DeBrusk that landed him a suspension for the remainder of the first round, reports TSN.ca.
Marner's contract extension is the Leafs' "priority one" going forward, says Maple Leafs' general manager Kyle Dubas.
Hyman is scheduled to undergo surgery Monday to repair a torn ACL that he sustained in the opening playoff series against the Bruins. The Maple Leafs are expecting him to be out at least six months.
Rosen was reassigned to AHL Toronto on Wednesday.
Kadri (suspension) saw his team drop Game 7 on Tuesday, which means his season ends with the center watching from the press box.
Andersen stopped 27 of 30 shots during Tuesday's 5-1 loss to the Bruins in Game 7 of their first-round series.
Andersen will tend the twin on the road for Tuesday's Game 7 tilt versus Boston, Amalie Benjamin of NHL.com reports.
Marleau dished out an even strength assist while averaging 17:06 of ice time in Sunday's 4-2 loss to Boston.
Gardiner dished out an even strength assist and had three hits and four blocks in Sunday's 4-2 loss to Boston.
Andersen stopped 37 of 40 shots in Sunday's 4-2 loss to the Bruins in Game 6 of their first-round series.
Andersen will guard the net in Sunday's Game 6 matchup with the visiting Bruins.
Andersen turned aside 28 of 29 shots in Friday's 2-1 win over the Bruins in Game 5 of their first-round series.
Muzzin made it to Boston for morning skate Friday morning following the birth of his baby girl Thursday in Toronto, reports TSN.ca.