Chelsea are due a bumper windfall should Crystal Palace sell Marc Guehi this summer.

The defender is a target for Arsenal ahead of the summer market.

The Daily Mail says Chelsea boast a 20 per cent sell on clause in Guehi's deal

For their part, Palace have slapped a £50m on the cente-half who has played his way to the fringes of the England squad this summer.

Arsenal see Guehi as an upgrade on Rob Holding.