Lehner is scheduled for an MRI Saturday and will miss that night's game against Tampa Bay.
Analysis: The Sabres are expected to provide a timetable for Lehner's return after receiving the results. The offseason acquisition suffered a right leg injury during the second period of Thursday's season opener against his former team, the Ottawa Senators.
The Hurricanes said in release Friday that Wisniewski will have surgery to repair a torn left anterior cruciate ligament and will face an estimated six-month recovery time.
Analysis: He was injured during Thursday's game at Nashville after skating just 47 seconds in his debut with the Hurricanes. Carolina acquired the 31-year-old Wisniewski from Anaheim in June in exchange for goaltender Anton Khudobin.
Richards and the Los Angeles Kings have settled their dispute over the termination of Richards' contract after his arrest in June. The NHL Players' Association announced the settlement Friday, making Richards an unrestricted free agent.
Analysis: Richards was charged with possession of a controlled substance in Manitoba after he was stopped by Canadian border authorities. The Kings terminated his contract later in the summer, and the NHLPA filed a grievance on his behalf. Richards had five years and $22 million remaining on a lavish 12-year, $69 million deal signed with Philadelphia. The two-time Stanley Cup champion's offensive production declined sharply the past few years.
Despres has agreed to a five-year, $18.5 million contract extension with the Anaheim Ducks. The Ducks announced the deal Friday, a day before their season opener at San Jose.
Analysis: Despres has made an impressive rise with the Ducks since they acquired him in a trade with Pittsburgh on March 2. He immediately won a regular spot in Anaheim's lineup with physical two-way play, scoring six points in the Pacific Division champions' final 16 regular-season games. Despres then stepped up in the playoffs, scoring seven points while the Ducks fell one game short of the Stanley Cup Final.
Defenseman Logan Pyett of the Philadelphia Flyers' AHL affiliate has been diagnosed with a form of cancer and will be out indefinitely. The team said Friday the 27-year-old Canadian has a sarcoma in his upper leg.
Analysis: Pyett signed a one-year contract with the Lehigh Valley Phantoms after being at the Flyers' training camp. He was selected by Detroit in the seventh round of the 2006 NHL entry draft. He signed as a free agent with the New York Rangers in 2012 and spent two seasons in the Kontinental Hockey League.
Halak will miss the team's first regular-season game in Brooklyn on Friday night because of an undisclosed upper body injury.
Analysis: Halak left New York's preseason opener on Sept. 21 after two periods and was sidelined for most of training camp. He took part in practice all week and was on the ice before the morning skate on Friday, but coach Jack Capuano said Halak wasn't ready to play.
Lehner will not return to the game after appearing to hurt his left leg in the second period of the season opener against the Ottawa Senators on Thursday night.
Analysis: Lehner was untouched when he circled his net, set himself in the crease and then grabbed at his left pad. He then went down on one knee while play continued up the ice. The Sabres announced Lehner sustained a lower-body injury.