An old clip of me and a southpaw friend sparring. Lots of good tactics and tricks against southpaws all within 90 seconds.
(Keep in mind there are many technical errors. Wide stance, lazy defense, low punch count, leaning on the ropes, etc. Not recommended in actual competition!)
Check out the "Advanced Boxing Workshop"
(my video on ADVANCED footwork & punching techniques):
This video is hosted from www.youtube.com