Manchester United are within their rights to pay agents multi-million pound sums as part of transfers, FA chairman Greg Clarke has said - but the sport needs a debate about the issue.

Fifa boss Gianni Infantino has called for more transparency around transfers.

World football's governing body is looking into Paul Pogba's world-record transfer from Juventus to Manchester United.

It follows claims that Pogba's agent will earn £41m from the deal.

"If that's what they're [Manchester United] going to pay, that's what they're going to pay," Clarke told BBC Sport.

"They are accountable to their owners; they're accountable to their fans.

"How much should we pay for players? How much should go to agents as a commercial transaction?

"If football wants to change that and limit the amount of money that agents get we're going to have to sit down as a game, led by the professional game, the Premier League and the EFL and the clubs and talk about that.

"I just think picking on one transfer and demonising it is not that helpful. Knee-jerk reactions don't often yield good outcomes. What we want is some thought about how much money stays in the game so it can be invested in long-term productive things."