Madrid (AFP) - World Cup-winning German midfielder Toni Kroos has agreed to extend his Real Madrid contract until 2022, the club said on Wednesday.

Kroos joined the Spanish giants in 2014 from Bayern Munich for €25 million euros (S$38.09 million) and has played 108 times for the club, scoring four goals.

His contract was to expire in 2020.

"Real Madrid and Toni Kroos have agreed on the extension of the contract which will keep the player at the club until June 30, 2022," Real said in a statement.

Part of Germany's 2014 World Cup-winning team, Kroos has established himself as an automatic choice in midfield for coach Zinedine Zidane and played in the club's Champions League final victory against Atletico Madrid in May.