Jackie McNamara has been left raving over the performance of Celtic centre-back Christopher Jullien after the Bhoys’ Europa League win versus Lazio.

Speaking exclusively to Football Insider assistant editor Russell Edge, the former Hoops and Scotland defender says that the French powerhouse endured a slow start to his career at the Glasgow giants but that he has lifted his game significantly as the season has progressed.

Jullien started Thursday night’s game against Lazio in Rome and helped limit the home side to just one goal, James Forrest and Olivier Ntcham netting to seal the Bhoys’ first-ever win in Italy.

McNamara was impressed with what he saw from the French giant and says that he has come on leaps and bounds since swapping Toulouse for Glasgow.

McNamara told Football Insider: “Jullien had a slow start adjusting but he’s shown he can get better and better. He had a slow bit coming in and came unstuck against Livingston.

“On the whole he’s been brilliant and dominant in the air. He’s got through it all, they’ve won the game and it’s a fantastic result.”

Jullien has played a total of 20 times already for the Hoops since his summer move, with the second of his two goals coming in the 2-1 victory over Lazio at Parkhead.

After sitting out the opening league game of the season, he has started every single one of the Bhoys’ Premiership fixtures, only failing to see out the full 90 minutes on two occasions.

In other Celtic news, Football Insider can reveal that a January move is on the cards for a Hoops winger.