Colorado Rockies shortstop Troy Tulowitzki, left, who strained his right quadricep muscle on Sunday, chats with Philadelphia Phillies right fielder Jaysen Werth as the Phillies warm up before the first inning of a baseball game in Denver on Monday, May 10, 2010. Tulowitzki will not play in Monday's night contest and is listed as day-to-day by the baseball club