J. Siqueira

Siqueira joined the Revolution academy in 2021, at 13, and worked through the age groups in MLS NEXT — under-14, under-15, under-16 and under-18. What he did before arriving at the club is not on record. He holds both American and Brazilian citizenship, which leaves him eligible for either national team; no senior call-up has been recorded.

The first professional contract came in March 2026, with Revolution II in MLS Next Pro. He has made 23 appearances for the second team. In the 2026 season alone he played 14 matches there, scoring twice and setting up one more.

The step up followed quickly. On 19 August 2026 he appeared for the first team in a 3–0 win over D.C. United, and four days later he was on the pitch again as New England drew 1–1 with NYCFC. Two MLS matches, no goals or assists of his own yet.

On 27 August 2026 the club announced it had signed him as a Homegrown Player . No fee was involved — the move stayed inside the Revolution's own system, from the academy through the reserve side to the senior squad. At 173cm and 70kg.