By C. Trent Rosecrans
Colorado has been searching for a second baseman since the offseason when the team tried to get Michael Young from the Rangers. Instead, they've gone with a mixture of Jonathan Herrera, Chris Nelson, Jose Lopez, Alfredo Amezaga and Eric Young Jr. Rockies second basemen have hit .236/.291/.319 through 80 games this season.
Ellis came off the disabled list last week only to see the emergence of rookie Jemile Weeks, who had gone from the team's second baseman of the future to its second baseman of the present in the time Ellis' 15 days on the DL for a strained right hamstring were used up.
Ellis is hitting .217/.253/.290 in 233 plate appearances this season, but should get a boost from playing at Coors Field.
The $1 million sent from Oakland will be used to cover some of what remains of Ellis' $6 million salary for this season. He is a free agent after this season. Ellis had a partial no-trade clause in his contract.
Billings, 25, has appeared in one game this season, allowing five hits and a run in two innings. He was 6-2 with a 4.47 ERA in 29 games and 50 1/3 innings for Triple-A Colorado Springs this season.For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.