Transfer windows are usually a source of great excitement for football fans, but unfortunately for the Celtic faithful, the prospect of losing their best players on a bi-annual basis has become part and parcel of supporting the Scottish Champions.

Last summer, both Gary Hooper and Victor Wanyama switched their allegiances to the Premier League, and in the January window Joe Ledley also followed suit.

Although it’s a disappointment for Neil Lennon to witness his key players walk out of the Parkhead exit in favour of more lucrative suitors, there’s no doubt that the Bhoys’ ability to add value to their signings has significantly boosted the club’s financial situation over the last few years – in fact, in January, the SPL kings were named as one of the top 40 earners in World Football.

With that in mind, here’s a list of FIVE Celtic players the Glasgow outfit should look to cash-in on this summer.

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Virgil Van Dijk