Nielsen hints at Danish return
The Danish international's contract at Watford expires at the end of the season and he is not sure whether or not he will be offered a new one.
The club's precarious financial situation may see Nielsen leave the club and the midfielder revealed he could be interested in a return to his native homeland.
"That is a possibility that I get a contract extension with Watford. However I have not heard anything yet and I am strongly considering a return to Denmark to settle us down there," Nielsen told Politiken.
"My eldest daughter is to start at school and it would be nice if she would start in a Danish one.
"As a 31-year-old I still feel that I'm fit for the fight. I have no injury problems and it's too early to step down. I will make up my mind after the season.
"When we move back to Denmark we will live in Copenhagen, but it's not that I want to play for one specific club in Superligaen. These times you need to be open minded."