Mantell akaita nhabvu yake yekutanga yechikwata chenyika musi wa9 Mbudzi 2005 vachipesana neIreland kuBeeston. Aive nhengo yechikwata cheEngland chakapedza chechishanu pa2006 Men's Hockey World Cup. Akakwikwidza kuChampions Trophy ya2010 na2011, uye aivewo chikamu chechikwata chakakunda pa2009
EuroHockey Championship.