Celtic manager Ronny Deila said in a press conference today that Kris Commons did not ask for more money.
Commons’s original deal with the Bhoys was due to run out at the end of the season, and negotiations over a new contract had been going on for a while.
Deila has expressed his delight with Commons finally signing a new contract with Celtic and is looking forward to working with him in the long term.
"I'm very pleased Kris Commons has signed,” the Norwegian told reporters today, according to Celtic’s official Twitter page. "The focus is now on football. It's a tough job to be at Celtic but he's happy and so are we. It's no problem to give him two years. He never asked for big money.
"Unless he was injured he was playing every game. I want players to improve. If you stand still you'll be out the team. I know Kris will be an important player for us over the next two years.
"He is going the direction we want and we have agreed in what we expect from each other which is a positive thing."
Commons joined Celtic from English club Derby County in January 2011 and has gone on to established himself as a key player for the Bhoys.
The former Scotland international has won the Scottish Premiership three times and the Scottish Cup twice with Celtic, and also named the PFA Scotland Players’ Player of the Year and the SFWA Footballer of the Year in 2013-14.
Deila also expressed his delight with Celtic’s business in the January transfer window.
The defending Scottish Premiership champions signed Michael Duffy from Derry City, and Gary Mackay-Steven and Stuart Armstrong from Dundee United.
"The board and Peter have been fantastic in this window,” said the 39-year-old. “I’m so happy when I see the new boys in training. The transfer window was good. Peter and me have the same goals.
"We got what we wanted out of the window and that's the good part. Celtic only use the money they have, not more than they have and that's a good thing.”
Celtic are currently at the top of the Scottish Premiership table with 51 points from 22 matches.