2018 (Philadelphia/Bethlehem): Aaronson turned professional, signing a Homegrown Player deal and becoming the Union's first-ever Homegrown born in New Jersey on September 17, 2018, with the contract effective in the 2019 season. For Bethlehem Steel FC, he made 16 regular-season appearances, with 13 appearances coming as an amateur before signing his Union deal, scoring one goal and adding five assists. He scored his first goal and added his first assist in the match vs. Atlanta United 2 (July 29), becoming the first-ever Union Academy player to make the USL Team of the Week. He notched an assist in his first match after turning pro, vs. TFC II (September 22), and added another at Indy Eleven (October 6). Additionally, he assisted on the game-winning goal in the win that clinched Steel FC's postseason berth, vs. Tampa Bay (October 14). He started Steel FC's postseason matches at Pittsburgh (October 20) and at Louisville (October 27).
2017 (Bethlehem): Aaronson made five regular-season appearances for Bethlehem as an amateur, making his debut for the club on July 15, 2017 vs. Pittsburgh. He also appeared in Steel FC's playoff match at Louisville (October 21).
Aaronson is a United States youth international, last being called up by the Under-19 National Team as part of the inaugural Men’s YNT Summit Camp from January 2-11, 2018.
Aaronson joined the Union Juniors at the age of 10 and also starred for the Union Academy, last appearing 14 times for the U-19s in the 2017-18 season, scoring six goals. He previously played for NJ Real and Medford SC.
Philadelphia Union sign midfielder Brenden Aaronson as a Homegrown Player on September 17, 2018, with the signing beginning in the 2019 MLS season.
Name: Brenden Aaronson
Born: October 22, 2000 in Medford, NJ
Hometown: Medford, NJ
Citizenship: United States
Acquired: Philadelphia Union sign midfielder Brenden Aaronson as a Homegrown Player on September 17, 2018, with the signing beginning in the 2019 MLS season