23 Mitch Atkins
Position: Pitcher
Age: 30
Throws: Right
Bats: Right
Last year: Pitched in Taiwan.
How obtained: Minor league free agent, 2016
Note: Has appeared in 10 major league games, the last being with the Orioles in 2011.

41 Ty Buttrey
Position: Starting pitcher
Age: 23
Throws: Right
Bats: Left
Last year: Combined 9-10 record, 3.92 ERA with Greenville and Salem.
How obtained: Fourth-round draft pick, 2012
Note: Ranked 18th among Red Sox prospects by Baseball America.

Reed Gragnani
Position: Infield
Age: 25
Throws: Right
Bats: Both
Last year: Batted .234 in 40 games for Portland.
How obtained: 21st round draft pick, 2013
Note: Spent considerable time on disabled list last year and begins 2016 on the DL.

36 Justin Haley
Position: Starting pitcher
Age: 24
Throws: Right
Bats: Right
Last year: Finished 5-16, 5.15 ERA in 27 starts with Portland.
How obtained: Sixth-round draft pick, 2012
Note: Made four starts in the Arizona Fall League (2-1, 0.64 ERA).

19 Williams Jerez
Position: Pitcher
Age: 23
Throws: Left
Bats: Left
Last year: Combined 2.54 ERA and 86 strikeouts in 88 2/3 innings in Class A and Portland.
How obtained Second-round draft pick, 2011
Note: Originally drafted as outfielder; now on Red Sox 40-man roster.

7 Tzu-Wei Lin
Position: Shortstop
Age: 22
Throws: Right
Bats: Left
Last year: Combined .351 average and .301 on-base percentage for Salem and Portland.
How obtained: International free agent, 2012
Note: Signed for $2-million bonus as 18-year-old from Taiwan.

51 Kevin McAvoy
Position: Starting pitcher
Age: 22
Throws: Right
Bats: Right
Last year: Finished 11-9, 3.89 ERA in 22 starts with Salem.
How obtained: Fourth-round draft pick, 2014
Note: Ranked 21st best Red Sox prospect by Baseball America.

30 Mike McCarthy
Position: Pitcher
Age: 28
Throws: Right
Bats: Right
Last year: Appeared in 29 games (18 starts) for Portland, with a 4.59 ERA.
How obtained 14th round draft pick, 2011
Note: Twice named Sea Dogs Citizen of the Year for his community involvement.

38 Simon Mercedes
Position: Pitcher
Age: 24
Throws: Right
Bats: Right
Last year: Relieved 37 games for Portland, recording a 4.88 ERA and 74 strikeouts.
How obtained: International free agent, 2012
Note: Made his pro debut as a 20-year-old in his native Dominican Republic.

17 Derek Miller
Position: Outfield
Age: 23
Throws: Right
Bats: Right
Last year: Batted a combined .279 (.380 on-base percentage) at Greenville and Salem.
How obtained: 23rd round draft pick, 2014
Note: Last season ended with an injury in July and is currently on the disabled list.

5 Mike Miller
Position: Shortstop
Age: 26
Throws: Right
Bats: Right
Last year: Batted a combined .240 for Portland and Pawtucket.
How obtained: Ninth round draft pick, 2012
Note: Miller played three infield positions and center field last year.

24 Heri Quevedo
Position: Pitcher
Age: 25
Throws: Right
Bats: Right
Last year: Recorded 5.40 ERA in 19 games (eight starts) for Portland.
How obtained: International free agent, 2012
Note: Originally signed with Yankees in 2010 but the contract was voided.

21 Henry Ramos
Position: Outfield
Age: 23
Throws: Right
Bats: Both
Last year: Batted .244 with 11 doubles in 27 games
How obtained: fifth round draft pick, 2010
Note: Played only 85 games last two years because of leg injuries.

2 Wendell Rijo
Position: Second base
Age: 20
Throws: Right
Bats: Right
Last year: Batted .260 with a .705 OPS for Salem.
How obtained: International free agent, 2012
Note: Ranked 15th best Red Sox prospect by Baseball America

10 Tim Roberson
Position: Catcher
Age: 26
Throws: Right
Bats: Right
Last year: Batted .300 in 57 games with Portland.
How obtained: Non-drafted free agent, 2011
Note: Hit for the cycle last year on May 15 against New Britain.

16 Jake Romanski
Position: Catcher
Age: 25
Throws: Right
Bats: Right
Last year: Batted a combined .264 n 63 games for Salem and Portland.
How obtained: 14th round draft pick, 2013
Note: Rated Boston’s best defensive catcher in the minor leagues, by Baseball America

15 Rainel Rosario
Position: Outfield
Age: 27
Throws: Right
Bats: Right
Last year: Batted .258 in Japan.
How obtained: Minor league free agent, 2015
Note: Played seven years in Cardinals organization and the last two in Japan.

28 Chandler Shepherd
Position: Pitcher
Age: 23
Throws: Right
Bats: Right
Last year: Compiled a combined 3.09 ERA and seven saves for Greenville and Salem.
How obtained: 13th round draft pick, 2013
Note: Recorded a 3.97 ERA and 16 strikeouts in 11 1/3 innings in the Arizona Fall League.

13 Ali Solis
Position: Catcher
Age: 28
Throws: Right
Bats: Right
Last year: Batted .145 in 69 Double-A games in Dodgers organization.
How obtained: Minor league free agent, 2015
Note: Reached the majors briefly with the Padres (2012) and Rays (2014)

31 Teddy Stankiewicz
Position: Starting pitcher
Age: 22
Throws: Right
Bats: Right
Last year: Threw 141 1/3 innings for Salem, with a 4.01 ERA.
How obtained: Second-round draft pick, 2013
Note: Ranked 20th best Red Sox prospect by Baseball America.

12 Cole Sturgeon
Position: Outfield
Age: 24
Throws: Left
Bats: Left
Last year: Batted a combined .245 with 22 doubles for Salem and Portland
How obtained: 10th round draft pick, 2014
Note: Used in emergency relief for Portland last year and picked up a win.

20 Aneury Tavarez
Position: Outfield
Age: 24
Throws: Right
Bats: Left
Last year: Batted a combined .253 for Salem, Portland and Pawtucket.
How obtained: International free agent, 2010
Note: Started in right field for the Dominican Republic in the Pan Am Games.

11 Jose Vinicio
Position: Shortstop
Age: 22
Throws: Right
Bats: Both
Last year: Batted a combined .292 in 60 games for Salem and Portland
How obtained: International free agent, 2009
Note: $2-million bonus signee, eligible for free agency after this season.

18 Jordan Weems
Position: Infield
Age: 23
Throws: Right
Bats: Left
Last year: Batted a combined .244 in 48 games for Salem and Portland.
How obtained: Third round draft pick, 2011
Note: After five years as a catcher, moving to the infield.

37 Aaron Wilkerson
Position: Pitcher
Age: 26
Throws: Right
Bats: Right
Last year: Combined 11-3 record and 3.10 ERA in Class A and Portland
How obtained: From Grand Prairie (independent league), 2014
Note: Standout in college, but undrafted after Tommy John surgery.

22 Jantzen Witte
Position: First base
Age: 26
Throws: Right
Bats: Right
Last year: Batted .283 with a .777 OPS in 85 games for Portland
How obtained: 24th-round draft pick, 2013
Note: Played in Eastern League All-Star Game, but broke his wrist the next day.

23 Rob Wort
Position: Pitcher
Age: 27
Throws: Right
Bats: Right
Last year: Recorded a 1.79 ERA in independent league with Sioux City
How obtained: From Sioux City, 2015
Note: Initially a Nationals draft pick, Wort pitched briefly for Harrisburg in 2013.

26 Luis Ysla
Position: Pitcher
Age: 23
Throws: Left
Bats: Left
Last year: After trade, pitched five hitless innings over two games for Salem.
How obtained: Trade with Giants for Alejandro de Aza, 2015.
Note: Ranked 25th best Red Sox prospect by Baseball America.

3 Carlos Febles
Position: Manager
Age: 39
Last year: Manager of Salem

25 Jon Nunally
Position: Hitting coach
Age: 44
Last year: Hitting coach for Salem

33 Kevin Walker
Position: Pitching coach
Age: 39
Last year: Pitching coach for Sea Dogs

40 Mickey Jiang
Position: Coach
Age: 32
Last year: Coach for Salem