Baddrol, alongside his teammates Abdul Hadi Abdul Hamid, Mohd Sabre Mat Abu and Mohd Khyril Muhymeen Zambri, Muhammad Shafiq Jamal and Mohd Bunyamin Umar earned their first call-up in 2005 to the Malaysia U-20.
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On April 6, 2008, Gifted Group chairman Jonathan Price fulfilled his promise to let Baddrol and his former Kedah teammate Mohd Bunyamin Umar train for two weeks with Chelsea FC at Stamford Bridge alongside their youngsters and their more senior players such as Shaun Wright-Phillips, Tal Ben Haim, Steve Sidwell and Nicolas Anelka.
Sabre was promoted to the senior after SUKMA 2006 where Mohd Azraai Khor Abdullah scout his potential alongside his teammates Baddrol Bakhtiar, Mohd Khyril Muhymeen Zambri, Muhammad Shafiq Jamal, Mohd Bunyamin Umar and Abdul Hadi Abdul Hamid from national Malaysia U-20.