There’s never been a week of AFL milestones like it, and there surely won’t be one again.

Four champions of the game celebrate tremendous longevity in the sport this weekend, led by Brent Harvey who will break Michael Tuck’s all-time games record.

Harvey will notch game 427 in North Melbourne’s clash with St Kilda on Saturday night, having joined the club as an 18-year-old in 1996.

No player has had more bounces or sent the ball inside 50 more times than Harvey, who has played with 166 different North Melbourne team-mates over 21 seasons.

The celebrations aren’t confined to Arden Street or Etihad Stadium, with Australia Post commissioning a special cover for the occasion, featuring a `Boomer 427′ medallion.

The next active player on the all-time games list, Matthew Pavlich, will be saluted this weekend in his 350th game.

Pavlich, certain to retire at year’s end, might not have got there if not for coach Ross Lyon.

The dominant centre-half forward offered to retire mid-season during the Dockers’ woeful campaign but was turned down by Lyon.

He will become the 15th player in the game’s history to reach 350 games when Sydney visit on Sunday afternoon.

On Friday night, Geelong will toast two of their favourite sons against Western Bulldogs.

In his game 326, Enright will break Ian Nankervis’ record to become the most-capped Cat, while Bartel plays his 300th game.

Enright could also retire at season’s end, and would do so with three premierships and five All-Australian selections.

Bartel, a two-time Norm Smith medallist is just the fourth Geelong player to reach the 300-game milestone.

The quirk that brings the four milestones together on the same weekend is accentuated by the three teams playing at home.

All this comes a week after Hawthorn champion Sam Mitchell notched his 300th AFL match, producing a best afield performance against Richmond.

Given the milestone rush, pity poor Trent McKenzie, Easton Wood, Paul Stewart, Lee Spurr and Tom McDonald.

All five will play their 100th matches this weekend, firmly in the shadow of the greats.