Racing PositionsTrotter: Crabtree is a 'major loss'4M1:12Bell: Crabtree's injury nothing more than chest contusion4M0:48Yates: Week 3 fantasy football free-agent finds4MField YatesCockcroft: The 'December performer' myth4MTristan H. CockcroftHarris: Flag-planted players for 20144MChristopher HarrisFox: Michael Crabtree is the difference4MAshley FoxHarris: Week 8 free-agent finds4MChristopher HarrisESPN.com #NFLRank Offense: 80-714MBullish on Colin Kaepernick4MKen Daube49ers' Boldin catching on, perks up Crabtree4M