Does anyone know what strings the professional cellist Yo Yo Ma uses?

Question

Like what brand, i.e pirastro: evah pirazzi, larsen, jargar, crown, prim, dominant, etc. I know many professionals mix and match different brands and types of strings for their cello, i.e A is a larsen, D is a jargar, etc. Thank You

Answer 1

No, but I'll ask him for you when I get to meet him in a few days at camp!  :-)

Answer 2

Elixirs