Rookie Alfred Collins Records First NFL Sack, Forces Fumble

49ers rookie defensive lineman Alfred Collins achieved his first career NFL sack, also forcing a fumble, against Philip Rivers in Monday's win over the Colts. Collins, who overcame a calf injury pre-draft and significantly slimmed down, celebrated the milestone with fellow rookie CJ West. Defensive coordinator Robert Saleh praised Collins' diligence, noting the sack as validation for his hard work and a sign of more to come for the young defender.