Why is the movie called southpaw

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Southpaw Official Trailer #1 (2015) - Jake Gyllenhaal, Rachel McAdams Movie HD

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Southpaw Official Trailer #1 (2015) - Jake Gyllenhaal, Rachel McAdams Movie HD
Southpaw Official Trailer #1 (2015) - Jake Gyllenhaal, Rachel McAdams Movie HD
Why is a lefty called a 'southpaw?'
Why is a lefty called a 'southpaw?'
Should Orthodox Stance Fighters Learn to Fight Southpaw?
Should Orthodox Stance Fighters Learn to Fight Southpaw?
Southpaw
Southpaw
Southpaw Official Trailer #2 (2015) - Jake Gyllenhaal Boxing Drama HD
Southpaw Official Trailer #2 (2015) - Jake Gyllenhaal Boxing Drama HD
ROCKY SPINOFF 'CREED' VS. SOUTHPAW FULL MOVIE TRAILER REVIEW
ROCKY SPINOFF 'CREED' VS. SOUTHPAW FULL MOVIE TRAILER REVIEW
How to Shut Down a Southpaw's Jab
How to Shut Down a Southpaw's Jab
Why is a lefty called a 'southpaw?'
Why is a lefty called a 'southpaw?'
Right-Handed Southpaw in Boxing/MMA?
Right-Handed Southpaw in Boxing/MMA?
Rocky Balboa explains the Origin of Southpaw Boxing - 1080p HD
Rocky Balboa explains the Origin of Southpaw Boxing - 1080p HD