He admits a change in personnel could rejuvenate his career with the club, but took no satisfaction from the news.
"Hughes has done a great job and he's a really nice man and a good trainer. The only negative was that I didn't get to play that much," said Riise.
"It could be positive for me, but it wasn't like I shouted when I got the message. The only thing I can do is get back and do my best, but I want to stay in London."