A list of the 10 most-discussed deals on Twitter throughout the summer window, with much of the buzz surrounding <a href="http://www.thenational.ae/sport/manchester-united">Manchester United</a> and <a href="http://www.thenational.ae/sport/manchester-city">Manchester City</a>. Click the arrows below to scroll through the photos. Follow us on Twitter <a href="https://twitter.com/NatSportUAE">@NatSportUAE</a>