Aaron Ramsey has been left out of Ryan Giggs' Wales squad for the China Cup.
Giggs said the Arsenal midfielder, who is expected to play for the Gunners in the second leg of their Europa League tie with AC Milan tonight, would undergo a "small procedure" after the match at the Emirates.
The Wales boss added: "This is a good time for Aaron to have it done."
Real Madrid star Gareth Bale has been included in the squad.
Giggs also revealed that Reading midfielder David Edwards had retired from international football . The 32-year-old had won 43 caps.
The former Manchester United star has added Albert Stuivenberg and Tony Strudwick to his coaching staff. He worked with both during his time at Old Trafford.
As expected, Giggs has retained Osian Roberts and Tony Roberts.