Likely first-round picks Will Brodie and Jy Simpkin are among a group of prospects to undergo another round of medical assessments from clubs next week ahead of the NAB AFL Draft.

Clubs will get a final look at the fitness of about 15 players who have been asked to present at AFL House next Wednesday for the extra medical check.

Brodie missed last month's NAB AFL Draft Combine with a sore ankle after managing the injury towards the end of the season, while Simpkin's draft year was all but wiped out when he broke his leg in April.

Possible top-20 pick Alex Witherden will also attend after being sidelined by a broken leg since May, while Daniel Venables' foot injury late in the season has seen some clubs ask for him to attend to get an update.

Gold Coast academy prospect Brad Scheer was ruled out of testing at the national combine with a heel injury, so will also attend next week's medical day.

"It's an opportunity for clubs to get an update on players who have missed substantial periods of the year through injury," AFL's talent development manager Michael Ablett said.

Each club is permitted four officials in the room to observe the day, with recruiters also able to follow the testing process.

Another group of prospects who didn't compete at the combine will also complete additional fitness testing under AFL supervision in the next week after clubs requested further data for their consideration.

The further medical and fitness testing will offer the clubs more information as they make their final call on prospects in the lead-up to November 25.

Hamish Brayshaw, Josh Daicos, Luke Ryan and Josh Daicos were other prospects who missed the national combine through injury.