Roqica has joined the Broncos on a one-year deal from Cronulla.
“I think one of the hardest things will be the 35 games that get played throughout the year,” Roqica told Love Rugby League.
“It is a long competition so hopefully I can get through the season and not have any injuries.”
The Sharks beat Melbourne 14-12 to lift their first Premiership in just under half a century.
The second-rower made his debut for Cronulla back in 2014.
“I was coming towards the end of my last year at Cronulla,” he said.
“I did have a bit of an up-and-down year with injuries and didn’t get a chance to renew my contract.
“At first I wasn’t sure whether I wanted to come over but after speaking to Hendo he sold it to me and said what direction he wanted the club to go in.”
A Fijian international, Roqica has played seven tests for the Pacific nation including the 2013 World Cup.
With the 2017 World Cup just nine months away, the 25-year old said ir would be a huge privilege if he was selected for his native Bati down under.
“It would be unreal. It is a cause that I really hold close to my heartn” he said.
“It’s something I like doing every time I get asked.”
Roqica thinks Fiji are certainly capable of springing a few surprises at the tournament.
In 2013 Fiji reached the semi-finals.
“I think it’s an open court,” he said.
“If everyone stays injury-free then I can say we’re definitely going to be a team to watch come the World Cup.”