Wayne Bennett refused to reveal why Latrell Mitchell was so emotional after South Sydney Rabbitohs dismantled New Zealand Warriors on Friday, while Penrith Panthers beat Melbourne Storm.
Mitchell was outstanding as the Bunnies thrashed the Warriors 40-12 to secure back-to-back victories in the NRL.
The full-back set up tries from Campbell Graham and Alex Johnston, with Adam Reynolds and Braidon Burns also crossing in the first half at Bankwest Stadium.
Cody Walker, Damien Cook and Alex Johnston dotted down in the second half of a one-sided encounter, which saw David Fusitu'a and Agnatius Paasi score for the Warriors.
Mitchell, who looked fortunate to get away with a high shot on Fusitu'a, was emotional on the field after the final whistle and was seen in tears in the dressing room, but Bennett was in no mood to explain the reason.
The Rabbitohs coach told reporters: "No I'm not going to tell you why. It's got nothing to do with you, to be honest with you.
"He may well have been [upset] but it's got nothing to do with you. The changing room for me has always been a sacred place and unfortunately the game gave away a lot of our rights to those places, but in my mind and in my head, it's a place where we can go and be who we want to be and not have to answer anyone."
Penrith later moved above the Storm to go third with a 21-14 victory at Campbelltown Stadium.
Stephen Crichton, Brian To'o and Viliame Kikau touched down, while Nathan Cleary scored nine points with the boot in an influential display for the Panthers.