NBA Live 10

A Triple-Double is when your player gets more than 10 points, 10 assists, and 10 rebounds/steals/or blocks.

I got this with Bryant while going for "Kobe's 81" and "Stilt 100". Adjust the sliders in your favour and you should be able to get 10 assists and and rebounds in addition to the points in next to no time.

What I did was during my 50 points against NJ with Lebron, by the time I had the 50 points, Shaq had about 15 boards (all of which were computer controlled). I just then used Shaq to score 10 points, then get 10 assists and voila achievement unlocked.

So if you're having trouble getting steals or boards, play a game on 12 min quarters with all sliders in your favour, and work towards a scoring achievement. By the time you're done, look at your players stats to see if any are in the double digits for boards or steals, and if so, just do 10 points & assists with that player.