According to Roto:
"Steve Smith was forced to leave Thursday's practice after straining his pectoral muscle reaching for the ball.
Beat writer Mike Garafolo notes that Smith tried to continue but was unable to practice through the injury. There's no word on the severity just yet, but Smith is being sent for tests. Mario Manningham will be a top-25 fantasy option this week if the injury forces Smith to sit out against the Cowboys."
"Steve Smith was forced to leave Thursday's practice after straining his pectoral muscle reaching for the ball.
Beat writer Mike Garafolo notes that Smith tried to continue but was unable to practice through the injury. There's no word on the severity just yet, but Smith is being sent for tests. Mario Manningham will be a top-25 fantasy option this week if the injury forces Smith to sit out against the Cowboys."