Coleraine defender Kyle McVey could be out for most of the season after breaking the same bone in his left foot for a third time in six months.
McVey suffered the setback in his latest comeback game for the Reserves.
"I'm disappointed for him - he has worked so hard to come back from this injury on two occasions," said Bannsiders boss Oran Kearney.
Meanwhile, midfielder Michael Heggarty will be out for at least a further two months due to an knee injury.
"Michael has consulted with a specialist and may require an operation. We will know better in another fortnight," added Kearney.
McVey returned from a lengthy lay-off in the second half of last season to compete in the pre-season Stena Cup tournament in Scotland, where he suffered a broken bone in the foot he injured in a game against Portadown last February.
McVey may require surgery to fully rectify the problem.
"It is a difficult injury to deal with and Kyle is very frustrated," said. Kearney