The hugely successful partnership between star Indian javelin thrower Neeraj Chopra and his long-time coach Klaus Bartonietz of Germany is set to end after five years of working together.

The 75-year-old Bartonietz has cited his age and family commitments to part ways with Chopra. "He (Bartonietz) is 75 and he now wants to be with his family and does not want too much travel also," an official of the Athletics Federation of India (AFI) told PTI.