Coach John Longmire is not concerned by ongoing contract negotiations with midfielder Tom Mitchell.

It has been widely reported Mitchell’s management put talks on hold this week, with the two parties unable to agree to terms during the Swans’ mid-season break.

Mitchell has played all 13 games this season and is in career-best form, averaging almost 28 possessions per match as part of the Swans’ star-studded midfield.

Longmire, talking before training on Tuesday at the SCG, said he wasn’t overly worried Mitchell hasn’t put pen to paper more than halfway through the final year of his existing contract.

“I’ll leave the footy club to work that out with his manager. It’s not something I get too heavily involved in,” he said.

“I’ve got enough concerns with looking at the team every week and the Doggies this week, without getting myself involved in those discussions.

“He’s a really good player and he’s had a terrific season this year, but the club will work through that with his manager.

“It’s always ongoing and that will take its course as the year progresses.”