Giggs has joined United manager David Moyes' backroom team.
"Itâ€™s marvellous to see Ryan Giggs on Davidâ€™s coaching staff," Sir Bobby told manutd.com. "Heâ€™s a marvellous player, he loves the game of football and he has unbelievable talent.
"His pace, his control and his speed of thought continue to stagger me. Heâ€™s been a great, great servant here as a player and itâ€™s terrific to see him working for the club as a coach.
"I just canâ€™t believe heâ€™s nearly 40. In my playing days everyone just assumed you were finished when you reached 30, but there he is, still going strong!
"As well as being a great player, Ryan is a terrific talker too, and that part of his game will be important now that heâ€™s part of the coaching staff. Itâ€™s great heâ€™s still linked to the club.
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