Pedzisa mutsara unotevera: Mantell akaita kutanga kwake kwenyika yose musi wa 10 February 2003. Akanga ari nhengo yeEngland squad iyo yakakwikwidza pa2006 uye 2010 Hockey World Cup. Akanga ariwo rutivi rweboka rakakunda pa
2009 EuroHockey Championship uye akauya wechitatu muna 2011, uye zvakare akakwikwidza muChampions Trophy muna 2007, 2009 uye 2011.