Denver Broncos quarterback Peyton Manning isn't allowed to own a piece of a football team per NFL rules, but that doesn't mean he can't own a piece of another team in another sport. Sources have confirmed to ESPN.com that Manning is part of the proposed ownership group led by Robert Pera, who agreed to buy the Memphis Grizzlies from Michael Heisley for about $350 million this summer. The news of the involvement of Manning, who played collegiately at the University of Tennessee, was first reported by Chris Vernon of ESPN Radio Memphis. The ownership stake is actually in the name of Manning's wife, Ashley, but one source confirmed that Peyton Manning is involved. The Manning's stake in the team and how much they paid for it is not known. "While my focus is on playing quarterback for the Denver Broncos, I look forward to watching her become involved with her hometown team," Peyton Manning said. Read more: http://espn.go.com/nba/story/_/id/8...ownership-group-buy-memphis-grizzlies-sources