Antipin agreed to terms on a one-year, entry-level contract with the Sabres on Thursday.
Lehner is on track to open the 2017-18 season as the Sabres' No. 1 goaltender, The Buffalo News reports.
The Sabres intend to address their leaky defense and to better manage Ristolainen's minutes next season, Sportsnet reports.
The Sabres expect Okposo to be available at the start of camp, Sportsnet reports.
Okposo reportedly suffered a concussion in late March as well as an adverse reaction to medication to treat the injury that landed him in the neurological intensive care unit in a Buffalo hospital, The Buffalo News reports.
Kane will not face charges for an incident outside a Buffalo bar back in June of 2016, The Buffalo News reports.
Eichel is eligible to sign a contract extension this summer, but has "no desire" to do so if Dan Bylsma remains head coach, WGR 550 reports.
Reinhart finished the 2016-17 season with a career-high 47 points, a five-point improvement from last year.
O'Reilly was voted by his teammates as the MVP, The Buffalo News reports.
After appearing in 30 games with the Sabres this season, Rodrigues is looking to add muscle and secure a regular roster spot next season, The Buffalo News reports.
Foligno finished the season with a career-high 13 goals, 12 of which came at even strength, and matched last year's total of 23 points.
The Sabres will not be making any updates on Okposo's illness anytime soon, Mike Harrington of The Buffalo News reports.
Kane led all Sabres with 28 goals this season, his highest total in five seasons, and finished with 43 points in 70 games.
O'Reilly has answered the call and will represent Canada at the World Championships, The Buffalo News reports.
Rodrigues was reassigned Monday to AHL Rochester.
Nylander was sent back to AHL Rochester on Monday.
Ullmark was reassigned to AHL Rochester on Monday.
Malone made his NHL debut Saturday against the Panthers.
Larsson recently had the pins in his wrist taken out and says he's "weeks out" from a full recovery, The Buffalo News reports.
Fedun was dealing with a high-ankle sprain down the stretch, Bill Hoppe of the Olean Times Herald reports.
Ullmark allowed three goals on 26 shots in Sunday's 4-2 loss to the Lightning.
Ullmark will make his season debut Sunday in Tampa Bay, Paul Hamilton of WGR Sports Radio 550 reports.
Lehner allowed three goals on 37 shots in Saturday's 3-0 loss against the Panthers.
Fedun (undisclosed) is projected to be a scratch for Saturday's road game against the Panthers, NHL.com reports.
Lehner will be in net Saturday against the Panthers, Mike Harrington of the Buffalo Guild reports.