Anaheim Ducks winger Patrick Eaves is in a stable condition after being diagnosed with Guillain-Barre syndrome, a disorder in which the body's immune system attacks the peripheral nervous system.
Eaves missed the start of the season with a lower body injury but returned to action on October 11, only to re-aggravate the injury.
After feeling symptoms of weakness, Eaves visited medical specialists last week, the team said in a statement.
The 33-year-old was admitted to the ICU at Hoag Hospital in Newport Beach but his condition has since stabilised.
"I want to thank Dr. Robert Watkins Sr. and Dr. Danny Benmoshe for their early diagnosis of my condition, along with the proactive Ducks medical team," Eaves said in a statement.
"Thanks to them and the incredible nurses at Hoag Hospital, I'm on the road to recovery. I've received tremendous amount of support over the last few days, most importantly from my family, friends and team-mates. I'm determined to fully overcome this and return to the ice as soon as possible."
Eaves is expected to make a full recovery.
"Our sole focus at this time is on Patrick's general health and well-being," Ducks executive vice-president/general manager Bob Murray said in a statement.
"We are grateful his condition was diagnosed early by Dr. Robert Watkins Sr. and Dr. Danny Benmoshe, and thank the staff at Hoag Hospital and our own medical personnel for their efforts. What defines Patrick Eaves is his strength of character, and that will serve him well in his recovery. Our thoughts are with Patrick and his family at this time."
Eaves has played in just four games this season, recording one goal against the New York Islanders.
|Ryder Cup heading back in Europe´s direction, says Niall Horan|
|Wow! Klopp hails Sarri´s Chelsea transformation|
|Giovinazzi to partner Raikkonen at Sauber in 2019|
|Bjorn backs ´phenomenal´ Rahm to continue trend of Spanish success|
|Durant in no rush to decide Warriors future|
|Rossi to face anti-doping hearing|
|Mignolet to return for Liverpool against Chelsea|
|Premier League ´interesting´ for Germany boss Low|
|Wilder wins Twitter vote to be Joshua´s next opponent|
|BREAKING NEWS: Isco an El Derbi doubt due to appendicitis|
|Juventus won´t rest Ronaldo ahead of Napoli clash|
|Slater cleared to play in NRL Grand Final|
|Top seed Begu sent packing in Tashkent|
|This isn´t my last hurrah in Ryder Cup, insists Poulter|
|Barba back in NRL with North Queensland Cowboys|
|Arsenal wait on Mkhitaryan and Sokratis|
|All Blacks wary of Pumas pack ahead of Buenos Aires Test|
|Ryder Cup has special place in Pep Guardiola´s heart, says Fleetwood|
|Mbappe ready to take over from Messi and Ronaldo, says Trezeguet|
|Molinari: Ryder Cup pressure far outweighs any major|
|Koepka heads PGA Tour´s Player of the Year nominations|
|Lampard: Mourinho still a great manager|
|United States and Europe reveal Ryder Cup practice groupings|
|Bulldogs´ fine for ´Mad Monday´ antics halved|
|Bennett to leave Broncos after 2019 NRL campaign|
|American League postseason picture becomes clear|
|Steelers edge Buccaneers for first win|
|Gatland wants Webb available for World Cup|
|Modric: Ronaldo, Messi out of this world but my season deserved recognition|
|Love says Cavs ´will surprise a lot of people´|
|George believes Thunder can compete for championship this season|
|Messi is the greatest ever – Eto´o|
|Messi to miss Argentina´s upcoming friendlies|
|Dolphins say Hayes tore ACL attempting to avoid roughing-the-passer penalty|
|Modric deserved FIFA Best award – Ramos|
|Thibodeau open to potential Butler trade|
|Modric wanted Ronaldo, Messi at awards ceremony|
|Brewers´ Yelich active after elbow hit|
|Anthony on coming off Rockets´ bench: Whatever I have to do to help this team win|
|Raiders coach Gruden says Mack trade was hard on players|
|Bale lauds ´unbelievable´ Modric after FIFA Best triumph|
|Ronaldo, Messi lacked respect with FIFA Best awards snub - Capello|
|New Zealand the benchmark but England can win World Cup - Mitchell|
|FIFA Best Award a dream come true for Modric|
|Lakers a long way from Warriors, warns LeBron|
|Milner pokes fun at Salah´s Puskas Award win|
|Josh Rosen to replace Sam Bradford as Cardinals starting quarterback|
|Kaymer: Home-course advantage crucial to Europe hopes|
|Marta and Pedros win FIFA Best awards|
|I want to be in Toronto - Kawhi Leonard focused on Raptors, not future|
|Messi and Ronaldo lead FIFPro World XI as Salah and Neymar miss out|
|Knicks´ Kristaps Porzingis ´itchy´ to return but won´t commit to 2018-19 season|
|Modric beats Ronaldo and Salah to FIFA Best prize|
|49ers confirm ACL tear for QB Garoppolo|
|Salah beats Bale and Ronaldo to Puskas Award|
|Deschamps wins FIFA Best Men´s Coach award|
|Law to leave Windies for Middlesex role|
|Sunderland terminate Ndong´s contract|
|Spalletti warns rejuvenated Inter against complacency|
|Ryder Cup 2018: Figo in town as USA arrive in style|
|Browns name Baker Mayfield starting QB|
|Chelsea need to be more versatile, warns Giroud|
|Paris Saint-Germain FFP case referred by UEFA back to CFCB Investigatory Chamber|
|Busy Bertens ready for bed, Muguruza gains Wimbledon revenge|
|Hart ready if England come calling - Dyche|
|Ryder Cup 2018: An honour and a burden - the unique challenge of captaincy|
|Hibino beats Bouchard again at the Tashkent Open|
|Falcons lose Ricardo Allen for season|
|Mbappe three-match ban stands following appeal|
|Tomic wins first Tour-level match since Wimbledon in Chengdu|