Scotland's assistant coach has admitted they will have a tough test against South Africa's maul today, and need to hope they are not bulldozed out of the way.
The Dark Blues can all but clinch a quarter-final slot if they become the second Pool B team to shoot down the Springboks when they clash at St James' Park.
But Jonathan Humphreys says that first they must find a way to stop Heyneke Meyer's rampaging forwards storming through the middle of their defence.
Scotland's Achillies heel all year has been dealing with the driving maul, having shipped tries against Italy, Ireland and Japan after failing to front up to the physicality of their opposition's forwards.
It is just their luck that they now take on a side who have got the technique down to a fine art.
Humphreys - the man in charge of whipping the Scottish forwards into shape - hopes the work he has put his pack through is enough to ensure they do not suffer again.
We've worked on these areas over the last two and a half months.
His thoughts are echoed by centre Matt Scott:
That's the game right there - the line-out and the mauls.