He currently plays for Ostersunds FK, wearing the number 14 shirt. He plays primarily as a Defender. His current market value is estimated at 150K €.

His most recent move was a Free from Bendel Insurance to Ostersunds FK on 2024-08-10.

Throughout the Sweden Superettan 2025, Sunday Anyanwu featured in 27 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.