The Tour de France winner Chris Froome has confirmed he will ride in the Vuelta a España, which begins on 22 August in Puerto Banús.
The former Blackburn striker got off to a dream start, with the winning goal on Premier League debut.
Celtic are prioritising the league over any other competition.
The new West Ham defender impressed against Premier League title contenders Arsenal this weekend.
The Serbian striker gave a committed cameo performance at St James's Park in the draw with Southampton.
Dick Advocaat saw his side get off to the worst possible start after a collapse at the King Power Stadium.
The Argentine took time to settle at the Etihad but has since gone on to thrive at Manchester City under Manuel Pellegrini.
Former Aston Villa player Stan Collymore has highlighted three faults in Arsenal's current side following Sunday's defeat to West Ham United.
The Hammers wonderkid enjoyed a dream Premier League debut against Arsenal on Sunday afternoon.