Andy Carroll is on the brink of joining West Ham permanently after passing a medical with the Premier League club.
Brighton have threatened to take action against the LMA as the dispute with Gus Poyet rumbles on.
Celtic have secured a work permit for Australian midfielder Tom Rogic.
The 20-year-old midfielder signed for Celtic on a four-and-a-half-year contract after a deal was agreed last week with Central Coast Mariners in Australia.
A club statement read: "The highly-rated youngster will now return to Australia to complete some final paperwork before returning to Glasgow and getting his Hoops career under way."