Welsh fly-half Jones, sporting stitches in his right cheek, told Sky Sports: "It was a very physical game against a good team so respect to the Maoris.
"The contact game was ferocious and the better team won on the day.
"We are hugely disappointed at this setback but we must be positive because there's a lot of rugby left to be played on this tour. We must pick ourselves up.
"We will look at the video, do our analysis and pick up on our weaknesses.
"We didn't get through the phases and know we can play better than that. We were particularly disappointed with our ball retention, the contact area was ferocious.
"Had we got through our phases, we might have created a few more opportunities - but we didn't."
He added: "It is important we build and learn from our mistakes. We are confident, it's still early days in this tour. We played a very strong Maori side so respect to them."