Larsson was born in Helsingborg, Scania. His father, Francisco Rocha, is from Cape Verde, and his mother, Eva Larsson, is Swedish. His parents, who never married and split up when he was 12, decided that he should take his mother's surname because they felt it would make it easier for their son to be accepted in Sweden. He credits his father for his love of football.

Shortly after rejoining Helsingborg, Larsson was signed on loan by Manchester United from 1 January until 12 March 2007, coinciding with the Allsvenskan's off-season. He scored on his debut against Aston Villa in the FA Cup third round on 7 January 2007 at Old Trafford. Larsson scored his first ever FA Premier League goal on 31 January in a 4-0 win over Watford.  While United were eager to extend the loan deal, Larsson stated that he had made a promise to his family and his club to return on 12 March. This was confirmed on 20 February, when Larsson announced that he would not be extending his loan period. Despite this, Sir Alex Ferguson was full of praise for the striker, who scored 3 goals in 13 matches in all competitions during his three-month stay, saying, "He's been fantastic for us, his professionalism, his attitude, everything he's done has been excellent." "We would love him to stay but, obviously, he has made his promise to his family and Helsingborg and I think we should respect that - but I would have done anything to keep him." Larsson scored Manchester United's only goal in their win against Lille at Old Trafford in the Champions League. He made his final appearance for United on 10 March in an FA Cup sixth round tie away to Middlesbrough, ending in a 2-2 draw.  Manchester United won the Premier League two months after Larsson had left the club, and although he had not played the required quota of ten league games to qualify for a Premier League winners medal, he, alongside Alan Smith, was granted special dispensation by the Premier League after the club requested extra medals for the two.  Larsson's last appearance at Old Trafford in fact came against United, the day after his loan with the club expired, as captain for a Europe XI team in the UEFA Celebration Match. Larsson received a standing ovation from the home fans upon being substituted for Liverpool player Robbie Fowler.

Using a quote from the above article, answer the following question: What did he lend to Manchester United?
Shortly after rejoining Helsingborg, Larsson was signed on loan by Manchester United