Jack has been under an injury cloud but did enough during Thursday’s final two-hour training session to convince the coaches he’s ready to run out onto the SCG against the Power.

Senior coach John Longmire dismissed any lingering concerns about his former skipper’s health in this week’s Centrum Team Selection.

“He (Kieren Jack) ran really hard and did all that was required of him, and has done for the past week,” Longmire said. 

“We really just needed him to tick the box of training really hard today. He got through it fine and pulled up well so he’ll be right.”

Jack’s leadership and pressure will be a welcome addition to a side lacking Jarrad McVeigh (calf) and blooding first-year draftee Oliver Florent.

Florent earned an immediate debut against Port Adelaide after an impressive display in the pre-season series. The teenager kicked two goals in his first game against North Melbourne and averaged 13 disposals across the three matches.

Longmire said the silky forward, who’s debut game was announced in front of teammates ahead of training this week, had earned his opportunity.

“It’s fantastic for Ollie to (be picked) so quickly,” he said.

“He was our first-round pick, obviously, so we knew he had talent, and we thought physically he had a bit of work to do.

“But he’s done that over the summer and he’s bought into what we want to do and how we want to play.”