A weekly boxing list compiled by Michael Rosenthal. This week: With the battle of southpaws – Winky Wright and Paul Williams – this Saturday in mind, the best left-handed fighters in the world pound for pound:

1. Manny Pacquaio: 48-3-2 (36 KOs)
2. Chad Dawson: 27-0 (17 KOs)
3. Paul Williams: 36-1 (27 KOs)
4. Vic Darchinyan: 32-1-1 (26 KOs)
5. Ivan Calderon: 32-0 (six KOs)
6. Winky Wright:> 51-4-1 (25 KOs)
7. Juan Manuel Lopez: 24-0 (22 KOs)
8. Edwin Valero: 25-0 (25 KOs)
9. Joel Casamayor: (36-4-1, 22 KOs)
10. Hozumi Hasegawa: (26-2, (10 KOs)

Five more (alphabetical): Lucian Bute, Sergiy Dzindziruk, Omar Narvaez, Juan Urango and Pongsaklek Wonjongkam.

Note: This list doesn’t necessarily reflect the official RING magazine ratings.

Michael Rosenthal can be reached at [email protected]