Cheika wants more mental toughness

Wallabies coach Michael Cheika has revealed he is working on improving players' mental toughness ahead of the 2016 international rugby season.

Cheika had close to 50 of Australia's best players in camp in Sydney on Monday and said among other things they had been doing mental preparation.

"Exploring some of that area is really important for me so that the team understands how to deal with difficult situations and get better at that, because that's what we're going to find as competition comes," Cheika told AAP.