 For the 2007-08 A-league season, Mariners' coach Lawrie McKinna made it clear the Mariners would hold onto this quality talent, and that he would be a major part of the campaign, hopefully filling the place vacated by Noel Spencer.In 2010/11, a serious knee injury kept Porter sidelined for the whole season.On 14 October 2007 Porter was sent off after receiving a red card for a sliding tackle.