Williams, who already has experience playing in Division One with Wolves told readingfc.co.uk:" It’ll be a massive test this season – the boys are up for it.
The 30-year-old knows that his place in the team is not guaranteed. He added: "There’s lot of competition for places – we all want to play at these grounds like Pride Park and Molineux.
"The first one is a massive game, and where better to start than at Pride Park?If we get something out of the game it sets the tone for the rest of the season."