"We just know they're a great side and it's going to be a great game, as every year it is."
Widdop announced last Friday he had signed a four-year deal with St George Illawarra. He said his Storm teammates and coach Craig Bellamy had been supportive of his news.
"That was one of the toughest things I had to do, to call Bellyache [Bellamy] and let him know my decision but he understands that this happens in football," said Widdop.
"He just wants me to get back on the field and do what I do best and hopefully make it a good year."
It is understood the money offered by the Dragons was too good for the 24-year-old father of two to refuse.
Widdop said he also wanted to take on more of a leadership role; something blocked at the Stormby the likes of test regulars Cameron Smith, Cooper Cronk and Billy Slater.
"The Dragons are a great club and have got a lot of history and they offered me a really good deal that I was really happy with," Widdop said.
"It's a bit of an opportunity to go and maybe take on more of a leadership role within the club."
The England international said he'd had no guarantees about who would be coaching at the Dragons next year, with the future of off-contract Steve Price still unclear.
"They're happy with Price and the way things are going and that's how it was left really," he said.
It will mean only two points on the competition ladder, but South Sydney centre Beau Champion believes a win over powerhouse Manly in Friday night's blockbuster could mean so much more to the Rabbitohs down the stretch.
Second takes on third when the Sea Eagles host the Rabbitohs at Brookvale Oval - the match a second litmus test in as many matches of South Sydney's premiership credentials.
The Bunnies pushed premiers Melbourne all the way before going down in their last start.
- AAP
