If you ignore the off season (for obvious reasons) it's Singleton's 3rd ban, totalling 7 games, in the space of just over 4 months of rugby. He's a liability and I'm not sure his performances make up for that. He can be a good player at his best but he rarely seems to be at his best.
Ellis will probably get 5 games. I have a little more sympathy for him. He lost his head and it's happened to plenty of players before him, but he'll have to be squeaky clean for the rest of the season.
I think Ellis will be the one we miss the most. He's been quiet but hard working. I think he's our best metre making prop and our top tackling prop. Maybe not a world beater but he definitely helps the players around him.