Nyora kupfuurira kweiyi ndima - Mantell akaita mutambo wake wepasi rose musi wa 10 Kukadzi 2003. Akanga ari nhengo yeEngland squad iyo yakakwikwidza pa2006 uye 2010 Hockey World Cup. Akanga ariwo chikamu cheboka rakakunda pa2009
EuroHockey Championship uye vakauya wechitatu muna 2011, uye vakakwikwidzawo muChampions Trophy muna 2007, 2009 uye 2011.