New Liverpool owners George Gillett and Tom Hick has said they will support manager Rafa Benitez with £40 million in the summer market.
Riise said: “Because the new owners are here that’s going to make everyone work hard to impress them, no doubt. You never know what’s going to happen and how many players will come in during the summer.
“We always work hard at Liverpool, but there are exciting times ahead and everyone wants to be part of that. They want to be part of the future here.
“The new owners came to Melwood on Sunday to watch us train, and they seem like good people. And the fact is, you never know what the manager is going to do from one game to the next, and that keeps everyone on their toes.”