Ronaldinho was pursued by the English Premier League club but eventually signed with the Spanish giants from Paris Saint-Germain for a reported fee of 30 million euros ($32.17 million), reports Xinhua news agency.
"When I was leaving PSG and before I came to Barcelona I had that chance [to join United] - and I was very close," Ronaldinho was quoted as saying by Gazeta Esportiva.
"United are a big club and any player would like to play for a big club, but I think I chose the correct league and the correct club.
"I have no regrets. I achieved my goals," Ronaldinho, a World Cup winner with Brazil in 2002, said.
"There are a lot of clubs where any player would like to play so it's difficult to pick just one. In every country there are two, three or four big teams and any player would love to be there.
"I had the chance to play for a lot of different teams in the Premier League, but I think all the choices I made were the right ones," he added.
Ronaldinho enjoyed the most successful years of his career at Barcelona, winning back-to-back FIFA world player of the year awards and a Champions League trophy before his 2008 move to Italian giants AC Milan.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)