"The way he's adapted his game is remarkable. I remember when he blasted past people but now he's chopping and switching positions and that's really difficult, especially as you get older," Owen Hargreaves told Inside United.
"He's still brilliant too. People don't see his discipline off the pitch and he's the best role model for most professionals.
"He uses ice baths and stuff ... you definitely prolong your career doing these things early on in your profession. It's frightening to think what he's done."
And fellow midfielder Michael Carrick said of Giggs: "To play for a club like this when you're on top for so long like he has been, it's not luck. People often take him for granted, but he has continually set the highest standard.
"He's still playing as well now as ever and that's after 17 years. "