Gonzalo Castro who joked about joining Arsenal reported to be an option to replace top Gunners target Gundogan

Bay Arena - Bayer Leverkusen

Could a player once linked to Arsenal end up replacing Ilkay Gundogan this summer?

Bayer Leverkusen midfielder Gonzalo Castro could be heading to Borussia Dortmund to replace Ilkay Gundogan.

Club boss Jonas Boldt told German channel Sport1 that he believes Castro will not sign a new contract, with his current deal set to expire in 2016.

Sport1 tout Dortmund as the most likely side to pursue his signature, with the 27-year-old midfielder possessing the experience and quality to fill step into Gundogan's place, with news announced last week by the Bundesliga side that he will not renew his contract.

Gundogan was reported by The Telegraph last week to be a top target for Arsenal. Dortmund have a decision to make whether to sell up now, or let him leave next summer on a free transfer.

Castro being signed would help them make up their minds to cash in, and the fact he once said he would see himself fitting in at Arsenal would be a nice touch to the merry-go-round.

He jokingly told German magazine 11 Freunde, as reported by HITC when discussing a potential move to England: "I would be the fourth German at Arsenal, that wouldn’t be so bad."

The central midfielder has 11 assists for Leverkusen this season, and would be a typically shrewd choice for Dortmund to fill the gap Gundogan would leave behind. 

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