The 21-year-old prospects spent the NHL All-Star break in Rochester, where they each played two games for the Amerks.
The Sabres are set to practice again this afternoon at KeyBank Center, their first time together in a week.
Prior to the break, Krebs and Samuelsson began earning regular duty with the Sabres.
Krebs has played 11 games, compiling three goals and five points. Samuelsson, meanwhile, played eight contests, recording zero points while averaging 18 minutes, 59 seconds an outing.
Stay tuned for updates as the Sabres return to practice.