The 21-year-old has scored 19 goals to help Nottingham Forest reach the Sky Bet Championship play-off final.
South African centre has been in imperious form for his club.
While big brother Brenden Aaronson appears to be headed to the Premier League and possibly the World Cup, Paxten Aaronson is poised to break out on his own. Paxten, 18, is a product of the Philadelphia Union's academy system, just like his brother. Both signed homegrown contracts with the Major League Soccer club. The younger Aaronson played more than 45 minutes for the Union on Sunday, coming in as a sub in Philadelphia's 2-0 victory over Portland. It was his longest stint on field in MLS play