Young midfielder Joe Rowley is facing a spell on the sidelines after suffering an injury in last night's friendly against Middlesbrough.
Rowley was helped from the pitch after falling awkwardly following a challenge from Alex Baptiste during the 2-0 defeat.
Rowley was taken to a local hospital for an X-ray which revealed that he had suffered a double fracture of his collar bone. He will have an operation in the UK on Monday.
There was better news regarding Ricky German, who was also taken off, with manager Gary Caldwell revealing that the young striker had reported feeling 'pins and needles' in his foot, adding: "I think he's fine."
Despite the result, Caldwell was not down-hearted about the outcome of the match. He said: "There were a lot of positives to take from the game. There's still a lot to work on, but I was delighted with a lot of the things we did.
"I thought it was a great test. They're a team that have just come out of the Premier League. You can see the quality that they have and the speed they have and it was a massive test for us.
"In the first half, we were very much in the game. We were organised and we created good opportunities.
"In the second half, when the young players started coming on, the gulf in class was big and the pace and power they had was dangerous. We struggled to cope with that.
"The opposition we're going to face, week in, week out, next season will be nowhere near the standard Middlesbrough were. We're delighted that we had the opportunity to test ourselves against a top team."
As the squad prepared to return to England, Caldwell reflected on a productive training camp in Spain and Portugal. "I'm delighted with everything overall that we've done," he said.
"We've spent time with the players and everyone has got to know each other a bit more, helping to develop the team spirit. It's been a very worthwhile week."