I think he's getting confused and means Dann is out for the season,...
I think there is a major problem with referees and pundits in viewing this sort of challenge. Hard but fair is OK, going for a 50/50 ball for instance, but injuring a fellow pro, or attempting too should be either a straight red or even if given a yellow card should be a retrospective red.
When Jesus was fouled and then twisted his knee/did the splits, the opposition player came through the back of him, but no yellow. Might have been a bit soft and "he was letting him know he was there" but there was no attempt to play the ball and it was a foul, a yellow card here would have stopped some of the other challenges. The challenge Dann made to stop KDB was another ridiculous challenge when Kev was bursting through into their box. The fact that Dann got injured meant the cynical foul was overlooked. The foul by Puncheon should have been a straight red.
The challeges by Kane and Alli were both also studs up/high challenges and should have been straight reds. Then Kane plays in the next game and Dyce never mentions that the Spurs striker shouldn't have been on the pitch. Mind you Lukaku was cleared somehow of kicking out twice recently so it shows how weak the panel can be even in the face of telvised evidence,...surprised Young was penalised, maybe Utd have some easier fixtures coming up..
