Leicester striker Dany N'Guessan has been ruled out for at least two weeks with ankle ligament damage.
The 23-year-old suffered the injury during the friendly against the Thailand national side in Bangkok on Saturday.
Defenders Michael Morrison and Miguel Vitor and midfielder Lloyd Dyer are also nursing knocks following the six-day trip.
Despite the injury problems, new Leicester manager Sven-Goran Eriksson believes the trip to Thailand was valuable in enabling him to get to know his players.
"It was a good week and we all know each other better and the owners better," Eriksson told the Leicester Mercury.
"I have been working with them now for three training sessions and I know much more about them now than I did one week ago. I like what I have seen and the spirit is very good."
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