Tom Rogic says Brendan Rodgers played a big part in his decision to sign a new contract with the club until 2019.

The Australian international has extended his deal in Glasgow after being impressed with early life under Northern Irishman Rodgers, who he described as "top class".

After overcoming injury problems, Rogic was a key figure for the Scottish champions last term, scoring a crucial goal away to Kilmarnock as Celtic clinched their fifth successive league title.

Now the 23-year-old has targeted further progression, telling the club's website: "The manager's had a very positive impact on the club so far and I'm sure we will continue to build on that.

"It's a great time to be at the club, and for me to have my future sorted and know that I'm going to be working with the manager for the coming seasons is great.

"The manager's had a say in me re-signing here, and he has played a big role in me deciding to stay here, and you can tell he's a top-class manager.

"I still feel that I have a lot to give and I know that, under him, I can develop and progress and contribute to the team's success."

Rogic joined Celtic in January 2013 from Central Coast Mariners before heading back to his homeland with Melbourne Victory to regain fitness.

The attacking midfielder kicked on towards the end of Ronny Deila's reign, scoring 10 goals last season.