Key NFL free agents including Diggs and Hill remain unsigned at training camps

As NFL training camps open, several high-profile free agents, including Stefon Diggs and Tyreek Hill, remain unsigned. Diggs, who was released by the Patriots, is coming off a Super Bowl appearance and was cleared of legal accusations earlier this year. Hill is recovering from a season-ending knee injury but has posted updates on his recovery. Other notable unsigned players include Deebo Samuel and Bobby Wagner. The 49ers lead all teams with substantial cap space, while Aaron Donald's potential unretirement adds to the free-agent.

• 5:12 PMYahoo Sports — Big Names Remain Unsigned as NFL Training Camps Open