The Swansea City and Wales defender will take his place again in the defensive line against a Plymouth side desperate for points as they battle against relegation from the Championship.
And it is that battle that makes Ash believe that they will be horrible to play against.
“We are still disappointed after Peterborough, the way it went at the end, but it was one of those things and we have to move on now,” said Williams in today’s Western Mail.
“I’ve been at the bottom end of the table before and I know what it is like when you are scrapping. There’s desperation there and it can make you dangerous.
“The big difference this time against Plymouth is that we are at home. You are always going to try to dominate a game at home and that is what we have been doing.
“Plymouth are not a horrible team, but they are going to be a horrible team to play against. I’m sure it’s going to be tough. It was tough last season. They want the points and they will come here fancying themselves to get something off us.
“We know we are going to have to be at the top of our game again. The one thing we need to do is to make sure we don’t slip up again.
“We are playing some of the best football at the moment of any side I’ve ever played in,” said Williams.
“We’ve dominated games, we’ve won games and we have been keeping clean sheets. I’m enjoying playing in this team and I’m sure the other lads are feeling the same way.
“We had a good unbeaten run going and fair enough that ended, but we would like to think we can go on another one now.
“I’m not going to say what this time can or can’t do this season, but we need to be strong right through now over the Christmas period and see where we are after that.”
