Moussa SeckSeck was on the Mavericks summer league roster last year as well. At that time,
I wrote this about him:
When he was 19 years old, Moussa Seck was a streetside cosmetics vendor in his native Senegal who had never played basketball before. He was spotted on the street by a scout, who may have picked up on the subtle fact that Seck is 7'4 tall. He's now 22, which means he's far from a polished and experienced basketball product. But he's still 7'4, so people are still interested in him. Seck spent last year with Poderosa Supernova Montegranaro, the feeder team of Serie A team Premiata Montegranaro. They play in a division so far below the big league team that I can't tell you a single other fact about them. To play in a lower standard of basketball and still be Googleable is damn near impossible. But, at the very least, it's the start of a CV.
Seck is also 220lbs, which is only slightly more than what I weigh. Except I'm 6'3 and he's 7'4. I don't know what this says about either of us.
In the time since that was written, absolutely nothing has happened that I can tell you about. If Seck has played, I don't know where or how well; if Seck has developed, I could not say. The Mavericks clearly see something that they like, yet that something might simply be his height. We as outsiders have nothing else to go on.