Merkulov was reassigned to AHL Providence on Sunday, according to Conor Ryan of The Boston Globe.
Merkulov was close to cracking the Bruins roster, but the 23-year-old will need more experience in the minors. The left-shot forward recorded 65 points in 67 regular-season games with AHL Providence in 2023-24. Merkulov has appeared in four NHL games in his career.