Rockies placed RHP Tyler Chatwood on the 15-day disabled list with an upper back injury.
Tyler Chatwood experienced upper back tightness during Sunday's loss to the Phillies.
Tyler Chatwood allowed six earned runs over four innings Sunday in the Rockies' loss to the Phillies.
Tyler Chatwood held the Rangers to two earned runs over 6 2/3 innings Tuesday but took a no-decision.
Tyler Chatwood allowed four runs on nine hits over six innings in Thursday's loss to the Dodgers.
Tyler Chatwood spun seven innings of one-run ball in a 6-1 win over the Mets on Friday.
Tyler Chatwood walked eight batters but held the Braves scoreless over five innings Sunday for his ninth win of the season.
Tyler Chatwood struggled in a losing effort against the Phillies on Sunday, allowing four runs on eight hits over five innings.
Tyler Chatwood posted a mix-bag start in Tuesday's no-decision against the Giants, walking four but allowing only two runs (one earned) over five innings.
Rockies activated RHP Tyler Chatwood from the 15-day disabled list.
Rockies manager Walt Weiss announced Sunday that Tyler Chatwood (back) will start on Tuesday against the Giants.
Tyler Chatwood (back) will make a rehab start with High-A Modesto on Thursday.
Tyler Chatwood (back) threw all his pitches during Sunday's bullpen session.
Rockies placed RHP Tyler Chatwood on the 15-day disabled list with a mid-back strain.