Arsenal put on red alert with 'mystery' Jurrien Timber transfer clause set to become active

Arsenal are placed on red alert after it was revealed that Jurrien Timber's 'mystery' transfer clause is set to become active next month.

The Gunners reportedly saw a bid worth £30 million rejected by Ajax for the 22-year-old defender on Monday evening.

It is thought that the Dutch club would require a far higher fee in order to part ways with Timber, who has just two years remaining on his current deal.

However, he would favour a move to the Emirates over fellow interested party Bayern Munich, according to Dutch outlet De Telegraaf.

While the Netherlands international's agent 'liked' a post regarding Kai Havertz's imminent move to Arsenal, adding fuel to speculation.

And there could be further good news for the Gunners as they continue their attempts to negotiate a deal with Ajax, following reports detailing his release clause.

Timber's 'mystery' release clause

Agreeing on a transfer fee has already proved to be a stumbling block in Mikel Arteta's transfer plans this summer, but the north London side could receive a gift in their pursuit of Timber.

According to Dutch journalist Johan Inan, Timber agreed on a release clause with Ajax last summer when he extended his contract at the Johan Cruyff Arena.

Inan adds that the clause will become active in two weeks, though no exact figure has been disclosed. Regardless, it will provide Arsenal with the opportunity to understand the ballpark figure they will need to pay to land the defender, or nab him at cut price.

Arsenal are also in talks with West Ham over a deal for Declan Rice.

The Gunners have had two bids, with the latest worth £90m, rejected for Rice but are tipped to return with an improved offer.

Although recent reports have indicated Manchester City are plotting a huge bid for the 24-year-old midfielder which could scupper Arteta's plans.