An MRI taken Thursday night revealed a right rib fracture, the team reported. Tulowitzki was injured earlier in the day while diving for a ball in the eighth inning of a 5-4 loss to the Washington Nationals.
"I'm not going to sugarcoat it. It's a big loss for us," Rockies Manager Walt Weiss said.
Through Thursday, Tulowitzki ranked second in the National League with a .347 batting average, third in home runs (16) and fourth in runs batted in (51).
Tulowitzki told the Denver Post in a text that he was in a lot of pain and was upset after working so hard to come back from an injury-plagued 2012 season.
The New York Yankees have placed third baseman Kevin Youkilis on the 15-day disabled list because of a back injury. . . . Cincinnati Reds reliever Jonathan Broxton is getting examined for a sore right elbow, leaving his status uncertain for a weekend series against the Milwaukee Brewers. Manager Dusty Baker said Friday that he had hoped not to use Broxton before the Reds returned home and he could be examined. . . . Texas Rangers slugger Jeff Baker sprained his right thumb receiving a high-five from a teammate and was not in the lineup Friday night against the Toronto Blue Jays. . . . Jays shortstop Jose Reyes played in a simulated game Friday and may start a rehab assignment next week. . . . Atlanta Braves Manager Fredi Gonzalez said that "barring any setbacks" Brandon Beachy will make his first start of the season during Tuesday's day-night doubleheader against the New York Mets. ... Tampa Bay slugger Evan Longoria was the Rays' designated hitter for the second straight game because of a sore right foot. . . . Rookie left-hander Tyler Lyons will remain in the St. Louis Cardinals rotation, edging out rookie right-hander Michael Wacha, who was optioned to triple-A Memphis. The Cardinals had to choose between the two with the return of right-hander Jake Westbrook. . . . Miami Marlins first baseman Logan Morrison has been scratched from the starting lineup for Friday's game against St. Louis because of back tightness. . . . The Boston Red Sox have recalled right-handed reliever Rubby De La Rosa from triple A to get a fresh arm for their weary bullpen. . . . . . . . The Seattle Mariners signed Henry Blanco and designated fellow catcher Kelly Shoppach for assignment.