ARLINGTON -- The Rangers have added four players to their 40-man roster to protect them from the Rule 5 Draft next month at the Winter Meetings. The four players are right-handed pitchers Fabio Castillo and Wilmer Font, left-handed pitcher Miguel De Los Santos and outfielder Engel Beltre. Castillo, 21, was 1-3 with a 2.11 ERA in 39 relief appearances while splitting time between Class A Bakersfield and Double A Frisco. Opponents hit .219 off him and he struck out 67 in 55 1/3 innings. He also has a 2.79 ERA and two saves in the Arizona Fall League. He is unlikely to make the team out of Spring Training but is one of the Rangers' top bullpen prospects for the future. Font, 20, will miss 2011 because of Tommy John elbow reconstruction surgery but is still a highly regarded prospect. He was 5-3 with a 4.35 ERA in 16 starts between Class A Hickory and Bakersfield. He had a 2.87 ERA in eight starts in Bakersfield before going on the disabled list with elbow problems on July 7.
De Los Santos, 22, was 4-2 with 2.94 ERA in 13 starts and nine relief appearances between Class A Spokane and Hickory. Opponents hit .161 off him and he struck out 14.3 batters per nine innings while walking 5.6 batters. Beltre was one of three players acquired from the Red Sox in a trade for Eric Gagne on July 31, 2007. Beltre, 21, combined to hit .300 (133-444) with 15 doubles, eight triples, six home runs, 49 RBI, and 18 stolen bases in 115 games between Bakersfield and Frisco. Players are eligible for selection in the Rule 5 Draft who are not on their Major League organization's 40-man roster and were signed at age 19 or older and have been in the organization for four years; were signed at age 18 or younger and have been in the organization for five years. The Rangers have quite a few Minor League players who were not added to the roster and could be highly coveted in the Rule 5 Draft. Among those not added and still eligible for the draft are right-handed pitchers Jake Brigham, Wilfredo Boscan, Mark Hamburger, Carlos Pimentel, and Kennil Gomez, lefthanders Geuris Grullon, Beau Jones, Kasey Kiker, and Joseph Ortiz, infielders Chad Tracy and Davis Stoneburner; and outfielders Marcus Lemon and David Paisano. But any player taken must stay with a club for an entire season or be offered back to their former team.