Australian goalkeeper Mat Ryan will not be heading to Glasgow for a trial with Rangers as he has picked up a shoulder injury. However, it may be a 'diplomatic' injury to allow the club to save face. Ryan was due to spend 10 days training with Rangers with a view to a move in September, when the club's transfer embargo is lifted. However, Central Coast Mariners have released a statement saying that the youngster had picked up a minor shoulder injury and would not be fit enough to complete the trial. The A-League club said: "While the injury is minor, both clubs have agreed that it is in Ryan's best interests to remain in Australia under the care of the Mariners' medical department for the foreseeable future." However, the injury will not prevent Ryan playing in Saturday's league game against Melbourne Victory. This adds fuel to the speculation that Central Coast had second thought following public pressure. Former Socceroos and Manchester United keeper Mark Bosnich was one of many who opposed the move. He said: "I don't know what he's thinking. I don't know what the club's thinking. He's going for a 10-day trial for the right to play against the likes of Elgin City, Montrose, Clyde and Stirling, and he's going to miss a top of the table clash with Melbourne Victory. This is one of Australia's best young talents and he's going to go down to the fourth tier of Scottish football. The Scottish Premier League isn't as good as the A-League."