By Ewan Murray It’s not long now until the circus of the summer transfer window rolls into town. After a particularly tame January of purse pinching, the market is set to be explosive this summer as Europe’s elite return to their extravagant spending sprees. There are already plenty of rumours circling about potential summer deals, but transfers are seldom straightforward these days, with fierce and public tug-of-wars for the planet’s most promising players. With a wealth of stories already filling newspaper columns, let’s take a look at ten transfer sagas that are likely to develop this summe…