The lanky forward left the Brazilians for Amakhosi two seasons ago and he looks set to be lost to the Naturena outfit at the end of the season
Leonardo Castro's future at Kaizer Chiefs is still hanging in the balance as he is yet to agree on a new deal with the club.
Isolezwe reports that the Colombian striker could be heading back to Mamelodi Sundowns in the new season as he's no longer happy at Naturena.
However, Chiefs refrained from commenting on the reports, saying it would be disrespectful to talk about Castro's situation because he's still contracted to them.