- Heather Dinich, ESPN Staff Writer
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"It's really unfortunate," coach Paul Johnson said in a statement. "Jaybo was playing really well and was having a good camp."
Shaw could miss six to eight weeks, but Johnson also said he might redshirt Shaw this season.
There are still three other scholarship quarterbacks on the roster -- redshirt freshman Tevin Washington and true freshmen Jordan Luallen and David Sims. Luallen has not practiced since Aug. 8 because of an ankle injury.
Shaw, who had a touchdown run earlier in the scrimmage, was injured on what appeared to be a routine pass completion. After being knocked to the ground, Shaw injured the collarbone when a teammate fell on him.
Shaw likely would have seen playing time again this year, as he gained valuable experience in 2008 at the expense of injured starter Josh Nesbitt, who missed two full games and parts of others last year because of hamstring and ankle injuries.
Shaw played almost the entire game in a 38-7 win over Mississippi State, and he led the Jackets to a 27-0 win over Duke the following week. He completed 9 of 14 passes for 230 yards against the Blue Devils.
Shaw finished his rookie season with a completion percentage of 62.5 percent and a pass efficiency rating of 194.02. He also ran for 200 yards and three touchdowns.
Shaw recently had been cleared to participate in full contact drills after being held out for a few days because of a concussion. He returned Thursday wearing a new helmet with a chin strap, according to the Atlanta Journal-Constitution. It was the second concussion he had suffered at Georgia Tech, the first coming during last year's Duke game.
Despite his injuries, Shaw is a hard-nosed runner who isn't afraid of contact, and he rushed for three touchdowns in the April 18 spring game.
Heather Dinich covers the ACC for ESPN.com.
1dSam Khan Jr.
5hJosh Moyer and Mitch Sherman
1dMitch Sherman and Josh Moyer
5dSharon Katz, ESPN Stats & Information