Tuesday 7 February 2017 13:24, UK
Joey Barton says he will be up against the "best player in the Premier League" in N'Golo Kante when Burnley face Chelsea this weekend.
Barton was questioned about his short, controversial spell at Rangers but the midfielder said he could not afford to "waste energy" talking about that with Kante - who is having a superb first season at Stamford Bridge - his opponent on Sunday.
Barton lasted just eight games in Glasgow before he was frozen out following a row with boss Mark Warburton and team-mate Andy Halliday, but he said he would not talk about what happened at Ibrox.
"I've got an enormous amount of respect for Rangers as a football club, the fans, the tradition - everything that it stands for," he told talkSPORT.
"I ain't going to come on the radio and have a go and air my dirty laundry in public about Rangers.
"It's just not something I aspire to do. It's not something I'm going to do today, in two months, in 10 months or in two years.
"I'm focused on Burnley. I've got N'Golo Kante and Chelsea on Sunday afternoon. I've got to use every bit of energy I've got trying to turn in a performance against arguably the best player in the league.
"This is the Premier League and we play Chelsea at home on Sunday. I can't waste any energy looking back over my shoulder because the challenge in front of me in incredible."