WARSAW, Mar. 3 -- Robert Lewandowski, who played for the Polish national team and for Borussia Dortmund, on Monday joined the elite group of UNICEF (United Nations International Children's Emergency Fund) Goodwill Ambassadors.

Lewandowski will support UNICEF in its fight for good health and a safe future for children all over the world.

"Being appointed as a UNICEF Goodwill Ambassador is a huge honour for me," Lewandowski said upon accepting the title. " Working with UNICEF will be my personal pledge to actively help children in need and remind everyone at every opportunity that every child has the right to have a healthy, safe and happy childhood."

At the start of his work for UNICEF, Lewandowski will take part in a European campaign highlighting the situation of children who are the victims of conflicts, crises and natural disasters, Marek Krupinski, director general of UNICEF Polska, said at a press conference on Monday.

Lewandowski will also support activities promoting sports and games as effective tools aiding children's development.

UNICEF has been inviting celebrities to support its campaigns as Goodwill Ambassadors since the 1950s.