 On 2 March 2010, the 35-year-old announced his retirement from professional football due to a hip injury; on 24 December, he decided to come back from retirement and re-joined his first team Instituto on a one-year contract.In 2001, there were talks of Klimowicz playing either for the Poland or the Ukraine national teams, but at the end nothing became materialised.Klimowicz's younger brother, Javier, was also a footballer, so was another brother, Nicolás.