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Red Sox made Koji Uehara feel wanted

Sometimes minor signings go under the radar. Maybe Koji Uehara will be that guy. Uehara was signed at the Winter Meetings, but the Red Sox made it official on Tuesday after he passed his physical.

Uehara said through interpreter Mikio Yoshimura that the biggest reason he signed was “The Boston Red Sox expressed the strongest desire to acquire me.”

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Uehara, who will wear Josh Beckett’s old No. 19, missed two months with a lat strain for the Rangers in 2012, but he was very effective. In 37 relief appearances, he had a career-low 1.75 ERA. He had the fourth-lowest WHIP in major league history at 0.64.

Koji Uehara pitched for the Rangers last season.

Tony Gutierrez/AP/File

Koji Uehara pitched for the Rangers last season.

The downside is that he’s 37. The Sox probably need to limit his back-to-back appearances and be careful how often he’s up in the bullpen. He’s definitely a late-inning guy — especially with his $4.25 million salary — who could close some games. Uehara said he did not know what his role would be.

Uehara’s 14.33 strikeout-to-walk ratio last season was the third best in modern major league history, trailing two seasons by Dennis Eckersley.

Righthanders hit only .125 (7 for 56) against Uehara. He spent 10 seasons in Japan, and was signed by the Orioles in 2009 to be a starter. He went to the bullpen in 2010 and since then he’s led the majors with a 10.76 strikeout-to-walk ratio (183 K’s/17 walks) and has averaged 11.36 strikeouts per nine innings (145.0 IP), the third-highest mark among American Leaguers with at least 125 innings over that time.

Over the last three years, he has held righthanders to a .177 average (47 for 265), third in the AL during that time (minimum of 200 batters faced). He posted a 0.72 WHIP or lower in consecutive seasons (0.72 in 2011, 0.64 in 2012), becoming just the second player to accomplish the feat, along with Eckersley in ’89 and ’90. With the Yomiuri Giants in the Nippon Professional Baseball (NPB) Central League, Uehara compiled a 112-62 record with 33 saves, a 3.01 ERA (518 ER/1,549.0 IP), and 1,376 strikeouts. He led the NPB in wins in 1999 and 2002, ERA in 1999 and 2004, and strikeouts in 1999 and 2003

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