Ferguson had closely monitored the winger's progress during his time in Italy and, for that reason, Blomqvist felt United were the club for him, even if it meant competing with Ryan Giggs for a place in the team.
“[Carlo] Ancelotti got fired [at Parma] and they hired a new coach, and I wasn't sure if he really wanted me," the 46-year-old told manutd.com.
“This was during the summer break, and then Sir Alex came in again for me.
“He doesn't just pick a player, he was after me for four years. I felt he wasn't just looking for a left-midfielder, he wanted me.
“I felt really strongly, even though I knew the competition from Giggsy would be really tough. But I knew he had been looking at me for four years, so I knew he wanted me, not just any left-footed midfielder.
“It was hard to leave Italy, but, in the end, it was the best decision I ever made!"