THIS is the guy to replace Walker:
Matt Miller @nfldraftscout15m
Chris Gragg (Arkansas) is a perfect fit for the #49ers offense in replacing Delanie Walker. Injured in '12, Gragg was a stud in '11.
Gragg started his Arkansas career at wide receiver after starring there at the Natural State's own Warren High School. He played in every game as a true freshman, starting in three, but caught just one pass for 25 yards on the year. A dislocated left ankle suffered during pre-season practices caused Gragg to redshirt in the 2009 season, but he returned to play in all 13 of the Razorbacks' contests the following year (four starts, eight catches, 171 yards, two touchdowns). He finally became a regular target with Wilson running the show in 2011, starting eight of 13 games played and finishing third in the team in receptions (41) and fourth in receiving yardage (518) while also scoring twice. Gragg dealt with a lingering knee injury his senior season, as he only managed to play in 5 games. In this injury shortened season, Gragg caught 22 passes for 289 yards and three touchdowns.
Straight-line speed helps him separate from linebackers in the middle of the field, which are often open as the team's gaggle of receivers open up the defense. Possesses receiver-like hands, adjusting to poor throws and going up to snatch passes above his head. Strong runner after the catch, churning through and spinning off tackles to maximize the play. Gives good effort as an in-line and downfield blocker.
Long-legged, can take time to get moving off the snap and change directions. Occasional drops have hurt his reliability in the past. Carries the ball away from his body while trying to get the extra yard. Lacks the desired bulk to block as an in-line tight end. Too often will be caught losing balance, lacks agility. Not a smooth athlete.
Gragg has dealt with some injuries throughout his career, and in particular, a knee injury really derailed his senior season. Gragg will have to play an H-Back role in the NFL due to his lack of size to block in-line. While he possesses good hands and speed, Gragg is a linear athlete who will struggle to be a successful blocker in the pros.
Worth noting: It took Walker some time to develop his blocking as well, but with good coaching, it became one of his better assets..