 In 2007, following Vecindario's relegation, Kelemen moved to Aris Thessaloniki FC.In January 2009, not being first-choice for the Greek, he returned to Spain, this time to its La Liga, signing with CD Numancia until the end of the season, which ended in relegation – he conceded five goals in the first half of his sole appearance, at Racing de Santander.In January 2010, Kelemen signed for Śląsk Wrocław, being a starter for the vast majority of his spell.