Jeffrey Boycott's "Growin"

Geoffrey Boycott has just said (about the SA bowler Albi Morkel): "he lasted about 14 balls at Yorkshire before he tore his grow-in".

I bow to the mighty Geoff on most things, but even in Yorkshire it's called a "groin", surely?  Maybe Geofrey knows more about Morkel than we care to know about?

One thing is for sure:  I would hate to see Geoffrey pull his "grow-in".