'Killer' has been told he must stay at Mamelodi Sundowns until the current PSL campaign concludes in May, with the club thought to be holding out for a fee of close to R20 million.
Partizan had a R12-million bid for the 26-year-old turned down last week by The Brazilians but Mphela remains hopeful a deal can be thrashed out to join the Serbian champions.
