Scott Brown has had a light-hearted pop at Christopher Jullien after the Frenchman demanded a penalty against Ross County - despite being wiped out by teammate Shane Duffy.

Jullien was sent tumbling inside the area during his side's 5-0 thumping of the Staggies last weekend. But despite his calls for a spot-kick, it was Irishman Duffy who flattened the defender as he rose highest to score a debut header.

Ever the joker, Brown could not pass up the opportunity to have a dig at his pal, while also heaping praise on both players for showing exactly what they've got in a convincing victory.

"Shane is very aggressive in the air," he told Celtic TV. "He knows if it goes in there he has always got a chance by being direct and physical. That's why we signed him, he's a top quality centre-half. Big Jullien was claiming for a penalty as well which I thought was amazing as well.

"The ball was in the back of the net and that's all that counts.

"The big man looks a threat at set-plays and he's very composed on the ball as well. A lot of people overlook that and just think about his size and his aerial ability but he's very good and chilled out on the ball as well."

The Celtic captain added: "[Duffy] is fantastic and he's a leader. He's talks on the park and you can hear everything that he says, and it's great for me playing in front of him.

"That communication helps everyone out, especially now we can hear each other as well."He adds experience, he's been down the road for a long time now and it was a dream move for him.

"It's great for us to see what he's like playing and see what he's like in the building as well as he's a great lad away from the pitch.

"He's a born winner and wants to show he can play with the ball as well."