Swansea City have confirmed Gylfi Sigurdsson asked to be omitted from their US tour squad.
Sigurdsson, who has been linked with Everton and Leicester City, has not travelled with the rest of the squad for the pre-season tour of the United States, the club have announced.
"Swansea City can confirm that Gylfi Sigurdsson will not travel with the squad to America for the pre-season tour," said a statement on the official club website.
"Having played against Barnet last night, Gylfi did not feel in the right frame of mind to travel this morning due to the current uncertainty over his future."