 After another two years at his hometown team, Mäntylä embarked on a second SHL tenure, playing for Frölunda HC from 2007 to 2009.On 7 April 2009 he left Frölunda and signed a contract to return to Tappara.In late October 2009, playing with Tampere Tappara, Mäntylä checked Helsinki IFK defenceman Mikko Kurvinen from behind into the boards, resulting in an injury that kept Kurvinen sidelined for six games.