PORT Adelaide defender Riley Grundy screened his brother Brodie's congratulatory phone call moments after he was drafted last week.

Riley was forced to wait until late in the fifth round of the NAB AFL Draft last Friday until the Power called his name with the 73rd overall selection.

He then left older sibling and All Australian Magpie Brodie waiting a little longer, with Power coach Ken Hinkley taking precedence.

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"(Brodie) was one of the first people to call me, but I actually had to decline his call to answer Ken's … I don't think he'd like that," Riley told reporters on Monday.

"He was really stoked for me and asked me how it felt to be on an AFL list?

"(Brodie) wanted me to go to a Melbourne team, but I'm so stoked to be staying here in Adelaide to be playing for Port.

"Seeing Brodie and being able to go visit Collingwood when he would train was really good.

"It gave me an insight into what it meant to be an AFL footballer, which I suppose a lot of people don't get that insight.

"I felt like I was very privileged to see my brother go through the AFL system before me."

Riley wasn't sure he would end up at the Power as they were the last club he spoke to in the lead-up to the draft.

Now that he's here, his first aim is to add size to his 194cm, 84kg body, using 202cm Brodie – who tips the scales at 102kg – as the benchmark.

"I hope to get pretty big eventually," Riley said.

"No one's really said exactly how much, but I plan to hit the gym and get significantly bigger.

"Hopefully the genetics help me get nice and strong and toned like (Brodie)."

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Riley was a part of the successful South Australian team at the NAB AFL under-18 Championships and played for Sturt in the SANFL under-18s and reserves competitions.

He models his game on Adelaide key defender Daniel Talia and is confident he will have the grades to study medicine, although he's undecided if he will start university next year, depending on his training workload.

The Power's draftees – Grundy, Connor Rozee, Zak Butters, Xavier Duursma, Boyd Woodcock, Tobin Cox and Category B rookies Martin Frederick and Kai Pudney – completed about 70 per cent of Monday's training session with the main group.

Star forward Robbie Gray (knee) and defender Hamish Hartlett (torn ACL) got through some light running.

Defender Matthew Broadbent got through a solid amount of running as he makes encouraging progress from ankle surgery, as did Tom Jonas, Dougal Howard, Sam Hayes (ACL) and Willem Drew (heel).

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Midfielder Tom Rockliff was also running 200m repeat efforts while he remains unable to do contact work after shoulder surgery.

Ruckmen Paddy Ryder and Scott Lycett, and defender Joel Garner, were also in that group.

Key forward Charlie Dixon wasn't on the track as he continues his recovery from a badly broken leg.