Man Utd boss Ferguson: Giggs was fantastic
He said: "What more can I say? He was fantastic. I think that goal sealed the victory.
"Once we got in front, that was the key to it because Middlesbrough are a young side."
Giggs, who made his 800th appearance for the club against Arsenal in midweek, admitted his week could hardly have gone any better.
He said: "It's been a great week. It couldn't have gone any better.
"I won the award, played my 800th game and then scored today.
"We just wanted to get this one out of the way and we've done that and now we just want to concentrate on the remaining games."