Western Bulldogs elevated rookie Lin Jong and 19 year old Fletcher Roberts are in the mix to debut against Richmond on Sunday, both being named on an extended interchange bench.

The two teenagers are joined by veteran defenders Ryan Hargrave and Lindsay Gilbee, utility Justin Sherman and small forward Andrew Hooper as inclusions to the 25 man squad which will be finalised Friday afternoon.

Watch Assistant Coach Steven King take you through the 25-man squad for Sunday in the WorkSafe Team Announcement on the media player above.

While key defender Roberts has been pushing for selection for a number of weeks playing for VFL affiliate Williamstown, Jong earns his first call up after being elevated to the primary list earlier today - replacing Daniel Cross who has been placed on the long term injury list.

Jong has impressed for Williamstown predominantly playing as an inside midfielder who doesn’t hesitate to put his head over the ball.

Earning a number of run with roles throughout the season, the Oakleigh Chargers recruit has also continued to improve his defensive efforts, nullifying his direct opponent on multiple occasions.

Assistant Coach Steven King said it is exciting to be potentially blooding a number of new players again this week after utility Jason Johannisen and defender Michael Talia were promising on debut against North Melbourne last Saturday.

“It is always exciting to have young players come in and be excited about playing league footy - so fantastic opportunity for those guys,” King said.

“Lin Jong for his first call up to the senior squad, fantastic effort for him to come off the rookie list.

“Unfortunately have got a couple of outs but with that brings great opportunity now for a few other young guys - to show where they are at and I guess show a bit to us as a match committee and obviously as a supporter group.”

Zippy forward Hooper could also play his first game for Season 2012 after putting in a promising game against Port Melbourne a fortnight ago in the VFL.

There were three forced changes to last weekend’s team in Jason Tutt (hamstring), Christian Howard (adductor) and Tom Liberatore (Club suspension).

To see the full Bulldogs and Tigers squads for Sunday click here.

To see the full injury list, click here.