Collingwood defender Brayden Maynard is set for a contract extension at the club, according to The Age's Jake Niall.

It is understood that the Magpies have agreed to terms on a new deal for the 22-year-old, which will see Maynard remain in the black and white for a further three years.

Maynard, who was already contracted until the end of 2020, will gain another two years as part of the agreement.

The extension means that Maynard will be a free agent come the end of his contract in 2022.

Maynard has been a mainstay in the Collingwood defence over the last few seasons, playing the vast majority of games for the Magpie outfit and causing headaches for the opposing clubs forward lines.

Collingwood had already moved to tie others down long-term, with Jack Crisp and Will Hoskin-Elliot signing four and two year extensions respectively.

The Magpies are now gearing up for Thursday night's clash at the Gabba against the Brisbane Lions.