Originally Posted by CatFromHue
Just on something else. In the Leinster game I saw Jennings a couple of times trying to get a maul going. He had the ball and was bound at the back of a couple players. Other players joining the maul though walked in front of him and he bound on them as opposed to binding on him and move the ball backwards. I presume this is illegal?
Players entering can join alongside the hindmost player (Jennings here). In practice, provided the player is just looking to find a good position to slot in and drive, refs will live with the new player ending up marginally
ahead of the hindmost.
If on the other hand the hindmost is hanging out of the back, effectively forming a new row then joining players shouldn't be wandering past him into the row in front.
As to binding-on vs being bound-onto, either is fine.
17.4(c) Players joining the maul. Players joining a maul must do so from behind the foot of the hindmost team-mate in the maul. The player may join alongside this player. If the player joins the maul from the opponents’ side, or in front of the hindmost team-mate, the player is offside.
Sanction: Penalty kick on the offending team’s offside line