PARIS - Zlatan Ibrahimovic said on Thursday that he is joining Manchester United, ending intense speculation about where the 34-year-old Swedish superstar forward will be playing next season. Ibrahimovic, who was a free agent after ending a hugely successful stay at Paris Saint-Germain, becomes the second signing of new United boss Jose Mourinho after that of highly rated Ivory Coast centre-back Eric Bailly from the Spanish outfit Villarreal. "Time to let the world know. My next destination is Manchester United," he wrote on Instagram and Facebook, complete with a picture of the United badge, as comments approving of the move -- one of the biggest of the summer transfer window so far -- flooded in. Ibrahimovic reunites with Mourinho, after they enjoyed a good relationship while together at Italians Inter Milan, in what is likely to be the last major move in a career spanning five countries and reaping 11 league titles. He is set to sign a one-year deal on Friday that will see him earn about £220,000 a week (260,000 euros, $290,000), British media said.