What happened: Cavan Sullivan scored under Mauricio Pochettino in his first senior window to set the program's youngest-goalscorer mark at 17. The goal opened the 2030 cycle window that finished with four wins in four matches.

Why it matters: The record follows a September run of 4 goals and 5 assists that earned MLS Player of the Month. It makes Sullivan an early focal point of a reset window that handed out 13 senior debuts.

What to watch: Philadelphia Union and the national team remain the immediate focus, with a move to Manchester City on course for January 2028.