Few players remain from Red Sox 2013 World Series team
What is wrong with Koji Uehara? - The Boston Globe
Koji Uehara - Wikipedia
RED SOX NOTEBOOK: Koji Uehara may be back soon
Koji Uehara Signs With NPB's Yomiuri Giants - MLB Trade Rumors
Red Sox acquire closer Craig Kimbrel from Padres
Koji Uehara - Wikipedia
Former Red Sox Closer Koji Uehara Announces Retirement From Baseball
Daisuke Matsuzaka - Wikipedia
A pennant, er banner, day for Boston Red Sox at winter meetings - ESPN - Boston Red Sox Blog- ESPN
Red Sox World Series Champ Koji Uehara Announces Retirement