On This Day: Hughes vs. Penn 2 | #OnThisDay in 2006: Matt Hughes and BJ Penn went to war for the second time! | By UFC | Facebook
When GSP and BJ Penn Fought for the Welterweight Strap! | Ultimate Fighting Championship, B.J. Penn, UFC Fight Pass, welterweight, Georges St-Pierre | #OnThisDay in 2009, GSP and BJ Penn threw down
![No. 6 -- Georges St-Pierre versus BJ Penn (UFC 58, March 4, 2006) - Best Welterweight Bouts in MMA History - ESPN No. 6 -- Georges St-Pierre versus BJ Penn (UFC 58, March 4, 2006) - Best Welterweight Bouts in MMA History - ESPN](https://a.espncdn.com/photo/2013/0726/mma_best_09.jpg)
No. 6 -- Georges St-Pierre versus BJ Penn (UFC 58, March 4, 2006) - Best Welterweight Bouts in MMA History - ESPN
![Frankie Edgar vs. BJ Penn III: Keys to Victory for Both Fighters | News, Scores, Highlights, Stats, and Rumors | Bleacher Report Frankie Edgar vs. BJ Penn III: Keys to Victory for Both Fighters | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://img.bleacherreport.net/img/images/photos/002/964/457/hi-res-eba7437793856989f87e30011fa8897d_crop_north.jpg?1404470710&w=3072&h=2048)
Frankie Edgar vs. BJ Penn III: Keys to Victory for Both Fighters | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![BJ Penn vs. Jon Fitch and 10 Fights That Should Have Been 5 Rounds Instead of 3 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report BJ Penn vs. Jon Fitch and 10 Fights That Should Have Been 5 Rounds Instead of 3 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://cdn.bleacherreport.net/images_root/slides/photos/000/854/301/109465225_original.jpg?1302623773)
BJ Penn vs. Jon Fitch and 10 Fights That Should Have Been 5 Rounds Instead of 3 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
On This Day: GSP vs BJ Penn | Georges St-Pierre, B.J. Penn | #OnThisDay in 2009: Superstars Georges St-Pierre and BJ Penn went to war for the second time! | By UFC | Facebook
![UFC FIGHT PASS on Twitter: "4 years ago today, The Final Chapter was written. BJ Penn vs. Matt Hughes 3 http://t.co/ZEGqLevF0v http://t.co/apxcigcw6s" / Twitter UFC FIGHT PASS on Twitter: "4 years ago today, The Final Chapter was written. BJ Penn vs. Matt Hughes 3 http://t.co/ZEGqLevF0v http://t.co/apxcigcw6s" / Twitter](https://pbs.twimg.com/media/B27HwZ8CMAEDHvA.jpg)