At six feet four inches and 264. Pounds Brandon Jacobs is without a doubt the biggest running back in the league -- size is not what impresses his new teammates. That would be the two symbol -- he is one in his seven seasons with the New York. The Giants at one of those right supports me laughing. He's going to be expensive 49ers in the NFC championship game Jacobs have lost fifteen pounds and that and is working on being more explosive to help 49ers in short yardage situation. Yeah also serves as a source on how to win the week of practice. We have to talk and you know. You know and only make of -- -- won't want you know. I think these guys nor do I think BB I don't know what it takes to get one's not shares in terms of from. Some of the and they've got a great sports looking on in the third one you know we got a good team and then and that's our goal and if we were before. Jacobs is the giants' all time leader in rushing touchdowns with 56 but his best season. Came four years ago so this season will be telling about what the thirty year old. Still has left. -- -- And other 49ers player whose production -- questionable right now Michael Crabtree. RN FL insider -- -- I had related injury news on the wide receiver as well up on defensive end Justin. -- that's -- on CSN Bay Area dot com Bethlehem rob Crabtree right here right now. 49ers to. Receiver Michael Crabtree led the 49ers in receptions last season and -- in spite of missing all of training camp with a foot injury ending getting off to a slow start in the regular season as he and Alex Smith tried to build some chemistry. -- those two did build some chemistry in the offseason but that's where it ended. From the very first practice Michael Crabtree went down they -- right leg injury so while the rest of the 49ers out there working other games Michael Crabtree is rehabbing. And as of right now for the first exhibition game scheduled for August 5 against Minnesota Vikings we don't know whether Michael Crabtree -- in his Trout -- never suiting up for an exhibition game all with the 49ers.