Giggs struck the opening goal in a 2-0 win that saw him become the oldest scorer in the competition having eclipsed former Juventus and AC Milan striker Flippo Inzaghi's mantle.
Mob squad: Giggs (centre) is congratulated after opening the scoring
Speaking in the aftermath of United's win, Evra told French broadcasters the reason behind the Welshman's fine form:
'Giggs? He must stop talking about his yoga!
'He says it makes him run faster. I will have to sign up immediately!
'He is 37 years old and he runs more than almost everyone else on the pitch, and he is decisive. What can I say!'
Slippery slope: Evra (right) tussles with Schalke winger Jeffferson Farfan
With United heading into the second leg at Old Trafford next week as firm favourites to book a place in the final at Wembley, Evra added that the scoreline could have been more emphatic but for the heroics of Schalke keeper Neuer.
'In the second half we had fewer opportunities but we scored twice,' he added.
'We could have scored three, four or six goals.
'But we played away from home, in a Champions League semi-final and it was difficult. So we got what we could get.'
Wayne's dreaming of Wembley! Rooney out to light up Champions League final Job done! Ferguson heaps praise on his players as United cruise to Schalke winAll the latest Manchester United news, features and opinion Explore more:People: Patrice Evra, Ryan Giggs