The guard is a Jiu-Jitsu player’s fortress, his defensive fortification. So sweep without opening it up to the enemy, as Andy Roberts (Roger Gracie) proposes you do.
http://www.youtube.com/watch?v=HJCLmbTLJb0
Pretty simple, huh? But repeat it till you’ve got it down pat. Next, work on the alternative attack using the omoplata.
http://www.youtube.com/watch?v=J5VOm6lIi4E
Now, a combination.
http://www.youtube.com/watch?v=S6NnNGtb4FA
And when you get to the side, get a slick choke from north-south position!http://www.youtube.com/watch?v=L4UZmZCcpP8