From Ineos website...
"Everything went pretty well until we hit the final climb. The guys had done a good job during the day, with Owain and Ian putting our guys in a good position. It was hot all day, and then it went really hard on the final climb and became a proper GC race.
"Our top guys just couldn't really follow. Only David could try to minimise the loss, but we cannot really be happy with this time loss on stage. But it's cycling, this happens and we will stay motivated for the next three weeks. We have some top quality riders and I'm convinced we will do a good race."