Schröck was born to a German father and a Filipino mother, making him eligible to represent Germany or the Philippines at international level.
He initially chose Germany, as he has represented the country at U-18, U-19 and U-20 levels.

Under previous FIFA statutes, Schröck could have switched to the Philippines until his 21st birthday but he didn't take that option, neither was he called up during this time.
In early October 2008, the Philippine Football Federation wanted to get him to play for the Philippines in 2008 AFF Championship qualification tournament.
However, he was not able to as he was already over the age of 21.
FIFA eventually removed the age limit on players switching nations in early June 2009, making him eligible again to switch to the Philippines.
In July 2010, Schröck announced his intention to play for the Philippines in the 2010 AFF Championship qualification tournament in Laos, but was ultimately left out of the squad as his documents had not been processed in time.
Schröck was born to a German father and a Filipino mother, making him eligible to represent Germany or the Philippines at international level. He initially chose Germany, as he has represented the country at U-18, U-19 and U-20 levels.
Under previous FIFA statutes, Schröck could have switched to the Philippines until his 21st birthday but he didn't take that option, neither was he called up during this time. In early October 2008, the Philippine Football Federation wanted to get him to play for the Philippines in 2008 AFF Championship qualification tournament. However, he was not able to as he was already over the age of 21. FIFA eventually removed the age limit on players switching nations in early June 2009, making him eligible again to switch to the Philippines. In July 2010, Schröck announced his intention to play for the Philippines in the 2010 AFF Championship qualification tournament in Laos, but was ultimately left out of the squad as his documents had not been processed in time.
Stephan Schröck