Ivica Zubac and Rade Zagorac. Both went in the second round. Timothe Luwawu went fairly late in the first round, but the other two could have been gotten to by the Spurs. Mega Leks has been turning out guys with really high-revving engines. Zubac is a legit 7-footer, and he's already got enough bulk to stand up to NBA bigs.
Zagorac is a tall SF, but the least NBA-ready of the three. Mostly needs more muscle, but he's a tough bas . He broke his arm in the first game of the season last year, and finished the game anyway. He probably would have been a stash, especially since the Spurs don't really need another 3. Honestly, I thought Luwawu would have been a little better than he has been - but the Spurs would have had him in Austin, and much improved by now.
Zubac is the one I really wanted the Spurs to make a move for.