Mezue ahịrịokwu na-esonụ: Na 2011, Sundgren laghachiri na ndị otu mbụ ya na Lit maka ọtụtụ oge oge mgbe Alexander Lindström na-agbake site na ịwa ahụ, na-enyere ha aka ịkwụsị n'ọnọdụ mbụ na njegharị Elite Series nke mba Sweden (ọ bụ ezie na ọ bịara nke abụọ na njedebe). Sundgren so ndị otu ahụ gbaa ọtụtụ n'ime njem ndị okenye mba ụwa maka ọkara nke mbụ nke afọ na ọzọ na njedebe nke oge na European Masters. Maka oge 2012-2013 oge, Sundgren bụ onye ndu oge niile maka Team Eriksson mgbe ndị otu ahụ kwagara Karlstad, sonyeere Markus Eriksson dị ka nke abụọ, ebe Alexander Lindström na Henrik Leek mere nzọụkwụ azụ site na curling. Site na ndị otu a haziri ahazi, Sundgren na ndị otu ya meriri iko Switzerland Basel (2012) na European Masters (2013), yana Universiade Winter (2013). N'oge 2013-14, Team Eriksson ruru ebe nke abụọ na Switzerland Cup Basel, Mercure Perth Masters, na Sweden's Elite Series ma soro asọmpi na Canada na World Curling Tour, na-abịa n'ọnọdụ nke ise na ihe omume atọ ma rute na nke mbụ ha Grand Slam Quarterfinal na National. Na-emeri Swedish Men's Curling Championship n'afọ ahụ, a họpụtara ndị otu ahụ ka ha nọchite anya Sweden na
2014 World Men's Curling Championship, dịka Team Edin nọchitere anya Sweden na European Curling Championship. Ọ bụ ezie na ndị otu ahụ meriri ndị otu Norway na ngwụcha, ha meriri ndị otu Canada, nke Kevin Koe gbara ugboro abụọ na mmemme ahụ.