DENVER -- The Colorado Rockies assigned four position players to the Arizona Fall League on Tuesday. But with some of their Minor League affiliates still having a slate of playoff games to go, the Rockies held off on selecting any pitchers.
Double-A Tulsa catcher/first baseman Ryan Casteel, shortstop Trevor Story and middle infielder Taylor Featherston each were included on the 35-man roster of the AFL's Salt River Rafters. Catcher Chris O'Dowd, son of Rockies general manager Dan O'Dowd, was also chosen as the "taxi squad" member of the roster, meaning he's only active Wednesdays and Saturdays.
With Double-A Tulsa winning its division in the first half of the Texas League, Class A Ashville clinching a playoff spot and the Rookie-level Grand Junction Rockies also looking likely for the postseason, the Rockies will wait on naming their four pitchers.
If their workloads permit, right-hander Jon Gray, left-hander Tyler Anderson and right-hander Eddie Butler could all be options out of Double-A Tulsa.
The Rockies originally had Anderson on their AFL roster last season before pulling him out after discovering a stress fracture in his throwing arm. Butler made his Major League debut with the Rockies earlier this season but they could be looking for him to make up lost time after he missed over a month with right shoulder inflammation.
As for the players that have been decided, Story, the Rockies' No. 11 ranked prospect, is the most notable selection.
The 21-year-old has struggled since his promotion earlier this season and is batting .200 (37-for-185) with 74 strikeouts at the Double-A level. The Rockies will be hoping to see something closer to the .332 average and 17 doubles he posted for Class A Advanced Modesto through 50 games to begin the season.
Casteel has spent his entire season in Double-A, batting .274 (113-for-413) with 21 doubles, 16 homers and 56 RBIs.
Featherston has put up similar powers numbers at the same level this year with 31 doubles and 16 homers to go along with his .257 (121-for-471) batting average.
After beginning the season with Modesto, O'Dowd has hit .261 (30-for-115) with six doubles and 15 RBIs in 33 games with Tulsa this season.
Tulsa manager Kevin Riggs will also be acting as the hitting coach for the Rafters for this upcoming AFL season.
Alex Espinoza is a contributor to MLB.com. Cody Ulm is an associate reporter for MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.