there are two bugs in the Djokovic challenges :
1 - the first is ‘don’t concede an ace’ I’ve managed to win the match several times without conceding an ace but that doesn’t validate it
2 - the second is ‘win the match with a slice’ against Tsonga in Melbourne 2008, I’ve won several times with a slice on match point but it doesn’t validate it
Please pass this on to the developers
because you can’t unlock the outfits of the 2 players if you can’t validate all the objectives.
thank you 
And I don’t know if it’s intentional or not, but in the US OPEN 2011 challenge against Nadal and the Australian Open 2012, Nadal had the same white outfit in the challenge.
Whereas in both tournaments he wore a blue outfit and a green one, as in the photos above.
If you can add those 2 outfit please
Thank you
There is also another issue with the win by 3 games in the final set on some of them as the final set goes into a tiebreak making the objective impossible.
You still unlock Tsonga prime version even though the slice in challenge is not ticked off.
