Real Betis president Angel Haro admits they will have to pay higher for Giovani Lo Celso.

On-loan from PSG, Lo Celso's form, confirmed Haro, will see Betis having to go higher than the original €25m permanent option originally agreed.

He explained, "Lo Celso? With the level that the player is reaching, it will be necessary to lift the purchase option. It's not a lot and in addition, it's three years to pay for the player.

"A fairly comfortable formula."