Paolo Guerrero admits he is still hoping to move back to Europe before the transfer window closes next month.
Fulham have signed young defender Tiago Casasola from Argentinian side Boca Juniors on a three-year deal.
Celtic have secured a work permit for Australian midfielder Tom Rogic.
The 20-year-old midfielder signed for Celtic on a four-and-a-half-year contract after a deal was agreed last week with Central Coast Mariners in Australia.
A club statement read: "The highly-rated youngster will now return to Australia to complete some final paperwork before returning to Glasgow and getting his Hoops career under way."