Tovar went 2-for-2 with a solo home run and a double during Monday's 13-3 loss to the Nationals.
Castro went 1-for-4 with a solo home run and a strikeout during Monday's 13-3 loss to Washington.
Feltner (5-8) took the loss after allowing seven runs (five earned) on six hits and four walks. He struck out six.
The Rockies selected Adams' contract from Triple-A Albuquerque on Monday.
Stott (foot) is starting at third base and batting sixth against the Mariners on Monday, Scott Lauber of The Philadelphia Inquirer reports.
Arraez (hamstring) is starting at second base and batting in the cleanup spot against the Mariners on Monday, Scott Lauber of The Philadelphia Inquirer reports.
Bohm (hamstring) is starting at first base and batting fifth against Seattle on Monday, Scott Lauber of The Philadelphia Inquirer reports.
Norby will start at second base and bat sixth in Monday's game against the Nationals.
Carrigg is out of the lineup for Monday's game against the Nationals.
The Rockies are expected to place Freeland on the 15-day injured list Monday while he recovers from a pinched nerve in his neck, Thomas Harding of MLB.com reports.
