BERLIN (AFP) - German international midfielder Christoph Kramer, currently on loan at Borussia Moenchengladbach, has signed a contract extension tying him to parent club Bayer Leverkusen until 2019, Bayer announced on Monday.

The highly-rated 23-year-old, a member of Germany's victorious World Cup squad, has attracted interest from several big clubs in Europe but has decided to stay with his boyhood club.