The centreman has been pining for a return to mainland Europe, where the salaries are higher and the profile greater.
He made his feelings known to club management in the last few days.
I understand that the Canadian asked to play this weekend before making up his mind.
But Steelers felt that if the 32-year-old was not 100 per cent committed he should go.
It is assumed at least one European club is waiting on the wings - although in fairness this season has not been such a happy experience for Mosienko.
He doesn’t appear to have been given as much time on the power play although he is second behind Mathieu Roy in terms of overall points in Elite League and Challenge Cup - five goals and 10 assists in 13 games.
Mosienko - a crowd favourite at the Arena - was effectively sacked seven months ago by his Danish club Esbjerg Energy after indulging in betting over his side’s scores.
Steelers decided it was a one-off episode and employed him, ahead of the 2014-15 season.