Question: What is the ethnicity of the football player who played for both Watford Football Club and Tottenham Hotspur?
Sentence (from "Allan Nielsen"): Allan Nielsen (born 13 March 1971) is a Danish former professional football player whose most notable period of football was four years at English Premier League club Tottenham Hotspur with whom he won the 1999 League Cup, scoring the winning goal.
Relevant evidence: Yes