Edelman is handling both ends of Silver Lake's $500M outlay for a 10 percent stake in City Football Group, parent of Britain's premium league champion Manchester City soccer club, an investment that values CFG at $4.8M.

CFG, which is controlled by the Abu Dhabi royal family, owns New York City FC and teams in Australia, Japan, China, Uruguay and Spain.

It plans to use the proceeds from the Silicon Valley private equity firm to fuel international growth, develop infrastructure and enhance technology. A home stadium for NYCFC, which currently plays in Yankee Stadium, is in the works.

The Financial Times reports that Silver Lake's investment makes CFG the globe's richest sports investment, ahead of rival Manchester United ($2.8B) and the Brooklyn Nets ($2.4B).

Silver Lake has $43B in assets under management. Managing partner Egon Durban will join CFG's board of directors, which will increase from eight to nine members.

Edelman's Iona Stewart represents CFG and Jennifer Stroud handles Silver Lake.