The Brazilians take on Esperance away in Rades on Wednesday night.
Sundowns will need to get at least a draw to be in a good position to progress to the quarterfinals of the Champions League.
You can also enjoy photographs of the team training just before their trip to Tunisia.
There's also a wonderful photo of Downs star Percy Tau meeting up with Al Ahly player Ahmed Fathi on the way to North Africa.
The boys took to the Training Pitch late last night as they put in final preparations ahead of their game against Tunisian outfit Espérance! pic.twitter.com/TIfYDUBP8D — Mamelodi Sundowns FC (@Masandawana) June 19, 2017