The Slovakian has been excellent for Toon over the past 12 months, which has lead to the Old Lady keeping an eye on his performances.
But Dubravka insists he is happy on Tyneside.
"I am very happy here. To be honest I am completely focused on my job here and that is what I am concentrating on right now," Dubravka told Chronicle Live.
"I know a lot of people have been asking me if I will stay or not, but I am happy now and I am not thinking about any other club."