Pacquiao vs. Mosley: Who Are the Best Welterweights in the World?

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Manny Pacquiao's WBO welterweight championship bout with Shane Mosley on Saturday night, May 7, matches two of the best 147-pounders in the world.

Here are The Ring magazine's latest welterweight rankings.

Manny Pacquiao
Country: Philippines
Record: 52-3-2 (38 KOs)
Ranking: This Week: 1 | Last Week: 1 | Weeks On List: 76
Title: WBO
Floyd Mayweather Jr.
Country: USA
Record: 41-0-0 (25 KOs)
Ranking: This Week: 2 | Last Week: 2 | Weeks On List: 84
Victor Ortiz
Country: USA
Record: 29-2-2 (22 KOs)
Ranking: This Week: 3 | Last Week: 3 | Weeks On List: 2
Titles: WBC
Shane Mosley
Country: USA
Record: 46-6-1 (39 KOs)
Ranking: This Week: 4 | Last Week: 4 | Weeks On List: 220
Andre Berto
Country: USA
Record: 27-1 (21 KOs)
Ranking: This Week: 5 | Last Week: 5 | Weeks On List: 149
Jan Zaveck
Country: Germany
Record: 31-1-0 (18 KOs)
Ranking: This Week: 6 | Last Week: 6 | Weeks On List: 72
Title: IBF
Vyacheslav Senchenko
Country: Ukraine
Record: 31-0-0 (20 KOs)
Ranking: This Week: 7 | Last Week: 7 | Weeks On List: 63
Title: WBA
Rafal Jackiewicz
Country: Poland
Record: 37-9-1 (19 KOs)
Ranking: This Week: 8 | Last Week: 8 | Weeks On List: 72
Mike Jones
Country: USA
Record: 24-0 (18 KOs)
Ranking: This Week: 9 | Last Week: 9 | Weeks On List: 7
Selcuk Aydin
Country: Germany (from Turkey)
Record: 21-0 (16 KOs)
Ranking: This Week: 10 | Last Week: 10 | Weeks On List: 2