Celtic defenders Emilio Izaguirre and Mikael Lustig have both signed new three-year deals at Parkhead.
Honduras full-back Izaguirre joined the club in August 2010 while Sweden internationalist Lustig was snapped up from Rosenborg in January 2012.
Izaguirre told the club website: "Celtic is a place I have called home for a number of years now and it is the place where I want to be in the future. It is a magnificent football club in a great city, somewhere my family have settled so well.
Lustig added: "It has been brilliant to win trophies here and I hope we can go again next season and bring more silverware to Celtic and achieve one of our main objectives in the next few months and take Celtic to the Champions League again.”