The procedure involved a single fusion in Collins' neck vertebrae and was considered a success, according to the report. Collins has been ruled out for the remainder of the season but has not been placed on injured reserve. Tthe move is considered inevitable, however, and could come before Sunday's game against the Denver Broncos, per the report.
Collins spent the night in the hospital and returned to Green Bay on Sept. 19 to meet with the team's medical staff.
The Associated Press contributed to this report