The Ring's latest divisional rankings have been updated after another bumper week of boxing - and there are changes in four divisions.

On June 19, Brian Norman Jr defended his WBO welterweight in style by scoring a 5th-round Knockout of the Year contender over Jin Sasaki in Ota-City, Tokyo.

On the undercard, Thailand's Thanongsak Simsri won the vacant IBF junior flyweight title with a split decision win over Filipino Cristian Araneta.

Last weekend, Galal Yafai and Francisco Rodriguez Jr went to war over 12 brutal rounds, but it was the Mexican who came out on top, picking up a dominant unanimous decision victory on away soil at Birmingham, England's BP Pulse Live Arena.

There's also a new ranking at junior bantamweight after Mexican legend Juan Francisco Estrada made his debut at 118 pounds.

Read below to to see which alterations have been made to the four divisions in question:

*Bold/italics denotes movement in the division.

Previous No. 6 Jin Sasaki drops out of the list. Everyone below him moves up a spot. New ranking at No. 10 is Karen Chukhadzhian.

C JARON ENNIS U.S. 34-0-0 (30 KOs)

1 BRIAN NORMAN JR. U.S. 28-0-0 (22 KOs)

2 EIMANTAS STANIONIS Lithuania 15-1-0 (9 KOs)

3 MARIO BARRIOS U.S. 29-2-1 (18 KOs)

4 GIOVANI SANTILLAN U.S. 34-1-0 (18 KOs)

5 SHAKHRAM GIYASOV Uzbekistan 17-0-0 (10 KOs)

6 ROHAN POLANCO Dom. Rep. 16-0-0 (10 KOs)

7 ALEXIS ROCHA U.S. 25-2-1 (16 KOs)

8 RAUL CURIEL Mexico 15-0-1 (13 KOs)

9 EKOW ESSUMAN U.K. 22-1-0 (8 KOs)

10 KAREN CHUKHADZHIAN Ukraine 25-3-0 (13 KOs)

Previous No. 2 Juan Francisco Estrada drops out after moving up a division. Everyone below him moves up a spot. New ranking at No. 10 is Rene Calixto Bibiano.

C JESSE RODRIGUEZ U.S. 21-0-0 (14 KOs)

1 FERNANDO MARTINEZ Argentina 18-0-0 (9 KOs)

2 KAZUTO IOKA Japan 31-4-1 (16 KOs)

3 PHUMELELE CAFU South Africa 11-0-3 (8 KOs)

4 CARLOS CUADRAS Mexico 44-5-1 (28 KOs)

5 ANDREW MOLONEY Australia 27-4-0 (17 KOs)

6 DAVID JIMENEZ Costa Rica 17-1-0 (11 KOs)

7 PEDRO GUEVARA Mexico 42-5-1 (22 KOs)

8 WILLIBALDO GARCIA Mexico 23-5-2 (13 KOs)

9 RICARDO MALAJIKA South Africa 15-2-0 (11 KOs)

10 NR RENE CALIXTO BIBIANO Mexico 23-1-1 (9 KOs)

Francisco Rodriguez Jr jumps from No. 9 to No. 4. Previous No. 4 Galal Yafai drops to No. 6. Angel Ayala, Felix Alvarado, Anthony Olascuaga all drop a place to No. 7, 8 and 9, respectively.

C (vacant)

1 KENSHIRO TERAJI Japan 25-1-0 (16 KOs)

2 SEIGO YURI AKUI Japan 21-3-1 (11 KOs)

3 MASAMICHI YABUKI Japan 18-4-0 (17 KOs)

4 FRANCISCO RODRIGUEZ JR. Mexico 40-6-1 (27 KOs)

5 RICARDO SANDOVAL U.S. 26-2-0 (18 KOs)

6 GALAL YAFAI U.K. 9-1-0 (7 KOs)

7 ANGEL AYALA Mexico 18-1-0 (8 KOs)

8 FELIX ALVARADO Nicaragua 42-4-0 (35 KOs)

9 ANTHONY OLASCUAGA WBO U.S. 9-1-0 (6 KOs)

10 TOBIAS REYES Argentina 17-1-1 (16 KOs)

Previous No. 5 Thanongsak Simsri jumps to No. 2. Sivenathi Nontshinga drops from 2nd to 3rd. Shokichi Iwata drops from 3rd to 4th. Carlos Canizales drops from 4th to 5th. Regie Suganob jumps from 7th to 6th. Cristian Araneta drops from 6th to 7th.

C (vacant)

1 RENE SANTIAGO Puerto Rico 14-4-0 (9 KOs)

2 THANONGSAK SIMSRI Thailand 39-1-0 (34 KOs)

3 SIVENATHI NONTSHINGA S. Africa 13-2-0 (10 KOs)

4 SHOKICHI IWATA Japan 14-2-0 (11 KOs)

5 CARLOS CANIZALES Venezuela 27-3-1 (19 KOs)

6 REGIE SUGANOB Philippines 16-1-0 (6 KOs)

7 CRISTIAN ARANETA Philippines 25-3-0 (20 KOs)

8 ERICK ROSA WBA Dom. Rep. 8-0-0 (2 KOs)

9 PANYA PRADABSRI Thailand 44-2-0 (27 KOs)

10 KYOSUKE TAKAMI Japan 9-0-0 (7 KOs)