Maple or Sycamore?

Maple or Sycamore?

Observation - Maple or Sycamore?. Description: At very first glance I thought this was a copper beech though quickly realised it isn't. Then I thought it was a sycamore with the leaves gone wrong, and the bark is grey and smooth - more like a Maple. It is on a golf course so it may be a cultiv

At very first glance I thought this was a copper beech though quickly realised it isn't. Then I thought it was a sycamore with the leaves "gone wrong", and the bark is grey and smooth - more like a Maple.
It is on a golf course so it may be a cultivated tree. If it is a sycamore what has happened to the leaves?