Nnamdi joined Dean Brennan’s side ahead of the 2025/26 League Two campaign and went on to make 46 appearances during his first season in black and amber, netting five goals along the way, including a memorable brace against Grimsby Town on home soil.

Beginning his Journey in Millwall’s Academy, Nnamdi went on to sign his first professional deal at Bournemouth in 2017, where he went on to make three First Team appearances and win Young Player of the Season, before being loaned out to Wycombe Wanderers.

 The creative midfielder scored his first professional goal in the League One play-off semi-final for the Choirboys, and also appeared in the final that year as Wycombe achieved promotion to the Championship.

Following a move to Rangers, Nnamdi inspirationally overcame health challenges that prevented him from playing a game for the Glasgow outfit, but the midfielder returned to football with Swindon Town for the 2024/25 campaign, where he played 41 times, scoring two goals for the Robins.