The Chile international is expected to complete a £35m move away from the Gunners this month after the Red Devils swooped in to hijack Manchester City's reported deal for the striker.
However, Jones says neither he nor his team-mates can shed any light on the situation, telling Manchester Evening News only that: “If someone new comes in the door then obviously it’s a positive move for United,” said the England international.
“But it’s not up to us, we just do the business on the pitch.
“We just go about what we do best. Keep playing.
“He’s (Sanchez) a good player. We’ll have to see.”