He is on the books of FK Neptunas Klaipeda and wears shirt number 9. His main role on the pitch is Midfield. He measures 174cm in height and weighs 71kg.

Over 15 appearances in the Lithuanian I Lyga 2025, Mantas·Rusys contributed 3 goals and 0 assists, completed 0 key passes from 0 total passes, and posted a passing accuracy of -.