Talking balls

As the cast of a thousand lawyers that worked on he long-running Wembley Stadium deal catch up on hours of lost sleep and generally get their lives back, Tulkinghorn is concerned that one lawyer involved may be in need of some extra help.
Clifford Chance partner David Metzger, who was part of the Multiplex team and a keen footballer, has found that, since the deal, he can speak only in football idioms.
Asked by The Lawyer how he felt about working on the deal, he said: “We're over the moon about sticking this one away in the old onion bag but it's a squad game nowadays and it would be wrong to single out individuals. For me, I thought the lads done great but we are taking one deal at a time and not counting our chickens.”
Can anyone help this man?