Sundowns suffered a second consecutive loss in the Absa Premiership when they went down 3-2 to Rise and Shine at the Peter Mokaba Stadium.
Mosimane claims his charges' minds are still on holidy after their short break Christmas break.
"It was two different halves in terms of opportunities. Two goals in one minute hey, it's football. They wanted it more than us. They were more hungrier. We can't complain about the break because they also had the same break. We are not yet back from the break," Mosimane told SuperSport TV.
"'Rama-G' will always score he's the top scorer in the league. He will [always] get his fair chance and score. But if we score five in the first half he can score his goal it's okay. We are not yet back from the break. We didn't want it more than them.
"I told them at half time that I saw a game like this against Platinum Stars last year, I told them I'm happy that maybe we should learn to park the bus and take it because this kind of a game if you miss so many chances it will come back and bite you. Fortunately against Platinum we scored a goal in the 84th minute. I saw it against AmaZulu we played nice and pretty football and didn't take our chances they came back to beat us irrespective of whether Nomvethe's goal was offside or not.
"I didn't coach at halftime I told them that this will come back and bite you. I told them that I'd be very happy even if we don't score but they [also] don't score. But it's mentality, it's attitude, they're not ready, they're not back from the break."