Just getting back into the swing of Blood Bowl, coming in from the old Astro-Granite 2nd Edition...

Can't recall, and the rules are a bit unclear, so I wanted to get a ruling on this.
PG 12, Living Rule Book 2.0 Reads, in regards to Injuries :
"The opposing coach rolls two dice and adds their score together in an attempt to beat the knocked over player's Armour value."
Now there is some dispute in the league I am in. Some of us believe that you have to actually beat the AV of the person. Example, to injure an AV 8 player, you need to roll 9+.
There are others who believe that scoring the AV counts as beating it. Example, to injure an AV 8 player, you need 8+.
Which is correct?
Thanks!
DD