Rubuta ci gaba don wannan sakin layi - Martti Markus Kellokumpu (an haife shi a ranar 29 ga Nuwamba 1963 a Kemijärvi) tsohon ɗan wasan tseren kankara ne na Finnish. Kellokumpu ya lashe tagulla a gasar zakarun duniya ta 1986
a Tignes, Faransa. A shekarar 1987, ya lashe gasar cin kofin duniya gaba daya. Kellokumpu ya lashe gasar zakarun Finland 11 a wasan tsere na freestyle tsakanin 1982 da 1988.