As others have mentioned, you can tell it's a foul by the path of the CB.
That out of the way, did anyone see the rest of the match? It was pretty entertaining.
1:38 - What is going on in Oliver's mind here? Why didn't he simply take an intentional foul and further tied up the 7, 14, and 8? He did the worst possible thing by breaking up the cluster and giving Django a clear shot.
1:40 - At hill-hill, Busti gets weird on the key ball. He has to shoot it all the way up table, and he hits it VERY rough. Yet, it someone manages to bobble in after hitting the rail about a diamond and a half before the pocket. Ortmann's reaction is hilarious.
1:41 - Busti is still pissed about the non-call, mostly at the ref. He really didn't want want to shake the ref's hand. Absolutely no smiles when he bobbled that last key ball. Pissed.