On 2 February 2009, Portsmouth confirmed the signing of Basinas on an eighteen-month contract. He made his debut for Portsmouth on 7 February 2009 against Liverpool. Just a few hours after his debut, manager Tony Adams, who brought Basinas in, was sacked by the club and replaced by Paul Hart. Under the new manager, Basinas hardly played and was benched for the rest of the season after only making three appearances for Portsmouth. Despite little playing time in his first season at Portsmouth, Basinas stated that he wanted to stay at the club. When Avram Grant became the manager of the club, Basinas had continued to impress for Portsmouth when called upon and a poll among Portsmouth fans on 23 January 2010, showed that he's appreciated by the fans. 77% of fans believe that "Basinas has the creative touch and must play", while only 2% believed he should leave the club. With Portsmouth Angelos Basinas reached the 2010 FA Cup Final against Chelsea of Carlo Ancelotti.