Career
Born in Copenhagen, Vestergaard played youth football with Brøndby. He began his senior career with German club TSG 1899 Hoffenheim. He moved to Werder Bremen in January 2015.
Vestergaard represented the Denmark national youth teams at under-18, under-19, under-20 and under-21 levels.
He received his first call-up to the Danish senior team in August 2013, describing it as his "dream" to play for the country, and he made his debut later that month in a match against Poland. He represented the Denmark U21 team at the 2015 Union of European Football Associations European Under-21 Championship in the Czechoslovakian Republic, and scored in a 2–1 defeat of the host nation in the opening match at the Eden Arena in Prague.
Scores and results list Denmark"s goal tally first.