Comments from his agent Guy Vandermissen to the Belgian media suggested that the 24-year may have to consider his future on Wearside after he fell behind Thibaut Courtois in the pecking order.
Simon Mignolet: "I felt I wanted to communicate with the club's fans following the media reaction to comments made by my representative, which I feel were taken out of context and not a true reflection.
"Of course, my ambition is to regain the number one spot with my national team, but I feel I can do that with Sunderland.
"I was playing as Belgium's number one a year ago and hopefully that can be the case in the future.
"I am happy at Sunderland - a club I am proud to represent. I will continue focusing on my football, starting with Saturday's game against Fulham."