On Wednesday afternoon, the Boston Red Sox made the signings of Dennys Reyes and Alfredo Aceves official. They also have designated pitcher Robert Coello for assignment to make room for Aceves on the 40-man roster.

Here’s the release from the Red Sox:

Boston Red SoxThe Boston Red Sox today signed right-handed pitcher Alfredo Aceves to a one-year contract through the 2011 season and signed left-handed pitcher Dennys Reyes to a minor league contract with an invitation to Major League Spring Training camp as a non-roster player. No further terms were disclosed. To make room for Aceves on the 40-man roster, the club designated right-handed pitcher Robert Coello for assignment.

The announcements were made by Executive Vice President/General Manager Theo Epstein.

Aceves, 29, went 3-0 with one save and a 3.00 ERA (4 ER/12.0 IP) in 10 relief appearances with the New York Yankees in 2010 before being placed on the disabled list on May 9 with a strained lower back. He missed the remainder of the season but made seven rehab appearances between New York’s Double-A Trenton and Triple-A Scranton/Wilkes-Barre affiliates in August. The right-hander has a 14-1 record with a 3.21 ERA (45 ER/126.0 IP), 87 strikeouts and 30 walks while holding opponents to a .221 batting average (104-for-471) in 59 career Major League games (five starts), all with the Yankees from 2008-10. Aceves led the Major Leagues with 10 wins as a reliever in 2009 and finished fourth in the American League with 80.2 relief innings that season. He owns the longest active winning streak in the Majors with a 10-0 mark since suffering his only career loss on May 26, 2009. The native of San Luis Rio Colorado, Mexico was signed by the Toronto Blue Jays as an international free agent in 2001 and the following season was traded to the Mexican League, where he played from 2002-07 before signing with the Yankees as a minor league free agent prior to the 2008 season.

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The 33-year-old Reyes made 59 relief appearances for the St. Louis Cardinals in 2010, going 3-1 with one save, a 3.55 ERA (15 ER/38.0 IP) and 25 strikeouts compared to 21 walks. The left-hander held opponents scoreless in 51 of his outings and ranked fifth among National League relief pitchers with 1.66 double plays induced per 9.0 innings. He leads all Major League left-handers (minimum 275 games) with a 2.63 ERA (60 ER/205.1 IP) over the last five seasons beginning in 2006. Reyes has appeared for 10 different teams over 14 Major League seasons, including the Dodgers (1997-98), Reds (1998-2001), Rockies (2002), Rangers (2002), Pirates (2003), Diamondbacks (2003), Royals (2004), Padres (2005), Twins (2006-08) and Cardinals (2009). In 660 career Big League games (40 starts), he is 35-35 with a 4.18 ERA (337 ER/775.0 IP) and a .238 opponent batting average (252-for-1,059) against left-handed hitters.

Coello made his Major League debut with the Red Sox last season as a September call-up, posting a 4.76 ERA (3 ER/5.2 IP) in six relief appearances for Boston. The 26-year-old led all Red Sox farmhands with a combined 130 strikeouts for Double-A Portland and Triple-A Pawtucket in 2010 while compiling a 7-6 record with one save and a 3.86 ERA (46 ER/107.1 IP) in 32 games (13 starts) between the two stops. He is 13-10 with a 2.91 ERA (65 ER/201.0 IP) over three minor league seasons in affiliated ball with the Angels (2007) and Red Sox (2009-10) organizations. This winter, he pitched in both the Dominican Winter League and the Mexican Pacific League.

The addition of Reyes brings Boston’s total number of non-roster players in Major League Spring Training camp to 21.

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